                IN THE SUPREME COURT OF IOWA
                                No. 16–1031

                         Filed August 31, 2018


MYRON DENNIS BEHM, BURTON J. BROOKS, ROBBY LEE
LANGSTON, DAVID LEON BRODSKY, JEFFREY R. OLSON, and
GEOFF TATE SMITH,

      Appellants,

vs.

CITY OF CEDAR RAPIDS and GATSO USA, INC.,

      Appellees.


      On review from the Iowa Court of Appeals.


      Appeal    from   the     Iowa   District   Court   for   Linn   County,

Christopher L. Bruns, Judge.



      Plaintiffs request further review of court of appeals decision

affirming summary judgment in favor of the defendants on plaintiffs’

putative class action challenging city’s automated traffic enforcement

ordinance.      DECISION       OF     COURT      OF   APPEALS     VACATED;
JUDGMENT OF DISTRICT COURT AFFIRMED IN PART, REVERSED

IN PART, AND REMANDED.



      James C. Larew of Larew Law Office, Iowa City, for appellants.



      Elizabeth D. Jacobi, Assistant City Attorney, for appellee City of

Cedar Rapids.

      Paul D. Burns and Laura M. Hyer of Bradley & Riley PC, Iowa City,

for appellee Gatso USA, Inc.
                                     2

APPEL, Justice.

      In this case, we once again consider a range of issues related to an

automated traffic enforcement (ATE) system. The City of Cedar Rapids

(Cedar Rapids or City) enacted an ordinance designed to authorize and

implement the establishment of an ATE system intended to detect drivers

traveling in excess of speed limits within Cedar Rapids. Pursuant to the

ordinance, Cedar Rapids contracted with Gatso USA, Inc. (Gatso) to

install the ATE system, which included mounted cameras and radar

equipment, and to provide the City with evidence of vehicles violating the

speed limit at the ATE locations.     The ATE ordinance imposed a civil

penalty for a violation.

      The plaintiffs filed a class-action petition against Cedar Rapids and

Gatso.    The plaintiffs sought damages and declaratory and injunctive

relief, claiming the ATE system as implemented by the defendants

violated the equal protection, due process, and privileges and immunities

clauses of the Iowa Constitution. The plaintiffs also raised a number of

other challenges, asserting that the administrative remedies under the

ATE ordinance were in conflict with Iowa law, that the ATE ordinance as

implemented by the City’s contract with Gatso unconstitutionally

delegated governmental power to a private entity, and that the

defendants were unjustly enriched by the revenues generated by the ATE

system.

      The district court granted the defendants summary judgment, and

the plaintiffs appealed.

      We transferred the case to the court of appeals.       The court of

appeals affirmed the district court. For the reasons expressed below, we

vacate the decision of the court of appeals and affirm in part and reverse

in part the judgment of the district court.
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       I. Factual and Procedural Background.

       A. Structure of Cedar Rapids’ ATE System.

       1. The ordinance.      In 2009, Cedar Rapids enacted an ordinance

establishing an ATE system. Cedar Rapids, Iowa, Mun. Code § 61.138

(2016). 1     The ordinance authorizes Cedar Rapids to “deploy, erect or

cause to have erected an automated traffic enforcement system for

making video images of vehicles that . . . fail to obey speed regulations

. . . in the city.” Id. § 61.138(a). The ordinance authorizes the hiring of a

contractor “with which the City of Cedar Rapids contracts to provide

equipment and/or services in connection with the Automated Traffic

Enforcement System.” Id. § 61.138(b)(2).

       The ordinance provides that when the ATE system generates an

image of a speeding vehicle, a notice of violation is mailed to the vehicle

owner within thirty days after obtaining the owner’s identifying

information. Id. § 61.138(d)(1). The ordinance further provides that a

vehicle owner may contest the citation by requesting an administrative

hearing “held at the Cedar Rapids Police Department before an

administrative appeals board . . . consisting of one or more impartial fact

finders.”     Id. § 61.138(e)(1).   Upon receiving the board’s decision, the

ordinance provides a vehicle owner with the option of either paying the

fine or submitting a request that the City file a municipal infraction in

the small claims division of district court. Id. § 61.138(e)(2).

       In any small claims court proceeding, Cedar Rapids is required to

show “by clear, satisfactory, and convincing evidence” that the vehicle

was travelling in excess of the posted speed limit.                  Iowa Code

§ 364.22(6)(b) (2015).     The ordinance authorizes a fine of between $25

       1The  ordinance is available online at https://www.municode.com/library/ia/
cedar-rapids/codes/code_of_ordinances?nodeld=CH6ATRRE_61.138AUTREN.
                                     4

and $750.     Cedar Rapids, Iowa, Mun. Code § 61.138(c)–(d).           The

ordinance also notes that state-mandated court costs are added to the

amount of the fine if the vehicle owner is found guilty after a small

claims court proceeding. Id. § 61.138(e); see also Iowa Code § 364.22(8).

      2. Gatso’s contract with Cedar Rapids. Pursuant to the ordinance,

Cedar Rapids entered into a contract with Gatso in 2009. The contract

provided that Cedar Rapids and Gatso had previously identified locations

where ATE equipment would be installed. Gatso was responsible for all

costs and expenses associated with the installation, operation, and

maintenance of the ATE equipment.         Gatso agreed to keep the ATE

system in compliance with all Cedar Rapids and Iowa Department of

Transportation (IDOT) standards.

      The contract provided that once the ATE system was operational,

Gatso was responsible for developing images and obtaining data from the

ATE equipment and presenting the information to the City as “an

electronic violation package.” The contract further provided that such

violation packages would be processed through a web-based application

that would allow the City’s police department to review, approve, or reject

each violation before a citation was issued.

      The contract provided that if Cedar Rapids rejected a violation,

Cedar Rapids would report to Gatso the basis for the rejection. If Cedar

Rapids approved a violation package, the contract called upon Gatso to

send a citation to the registered owner of the vehicle by mail using its

web-based program. If the registered owner chose to pay the citation,

Gatso would accept violation payments on behalf of the City by check,

credit card, or money order.

      Under the contract, Gatso’s fee for services was $30 per paid

violation, later reduced to $25 per paid violation. For its ATE services,
                                       5

Gatso     received   payments    of   $817,960,    $2,537,280,    $2,152,650,

$2,137,140, and $1,163,400 from Cedar Rapids for calendar years 2010

through 2014. For the period between March 17, 2015, and January 25,

2016, Gatso received $1,749,143.

        B. Gatso’s Notices to Alleged Violators.

        1. Content of notice of violation. Each of the plaintiffs in this case

received a “Notice of Violation” of the ATE ordinance.           The notice of

violation displayed the City of Cedar Rapids logo and had the signature

of the Cedar Rapids law enforcement officer who approved issuing the

citation.

        The front page of the notice of violation provided information about

the time and place of the alleged violation along with two photos of the

vehicle recorded by the ATE system.         The front page of the notice of

violation provided the following admonition:

        Failure to pay the civil fine or to contest liability within (30)
        calendar days is an admission of liability in the full amount
        of the civil fine assessed and will result in the loss of your
        right to a hearing. In addition, you may be subject to formal
        collection procedures including, but not limited to, being
        reported to a credit reporting agency, and a civil lawsuit.

        The backside of the notice of violation provided information about

how to pay the civil penalty. It also stated that a person receiving the

notice of violation had a right to contest the violation in person at an

administrative hearing. The notice of violation suggested that recipients

wishing to contest the violation “review the city ordinance, the images,

and the actual recorded video (if applicable) of the infraction” and

provided a limited list of “valid defenses.” The list of valid defenses does

not include a defense that the driver was a person other than the

vehicle’s registered owner.       The backside of the notice of violation

cautioned that the failure to appear at an administrative hearing “will
                                      6

result in a final determination of liability.” The notice of violation made

no mention of the recipient’s option of requesting Cedar Rapids initiate a

small claims action in district court where Cedar Rapids would bear the

burden of proof of showing a violation “by clear, satisfactory, and

convincing evidence.” Iowa Code § 364.22(6)(b).

      2. Content of “notice of determination of liability.” If the first notice

of violation did not result in payment or the scheduling of an

administrative hearing, Gatso sent out another document to the vehicle

owner entitled “Notice of Determination 2nd Notice.” As with the notice

of violation, the notice of determination carried the City of Cedar Rapids

logo and had the signature of a law enforcement officer.

      The notice of determination provided the same information about

the time and place of the alleged offense as the notice of violation.        It

contained, however, a slightly different admonition than the original

notice of violation:

      Failure to pay the civil fine or to appeal this determination
      within (30) calendar days may result in the possible
      imposition of a late fee. In addition, you may be subject to
      formal collection procedures including, but not limited to,
      being reported to a credit reporting agency, and a civil
      lawsuit.

      The backside of the notice of determination also differed from the

notice of violation.     Unlike the notice of violation, the notice of

determination declared that citizens could resolve the notice of

determination by paying the fine or “request[ing] a trial before a judge or

magistrate” within thirty days of the date listed on the front of the notice.

      3. Content of nonresident request for hearing, non-appearance form.

A third form generated with the Cedar Rapids logo was entitled “Request

for Hearing, Non-Appearance Form.” This form was available to vehicle

owners who did not reside in Iowa.          The request for hearing, non-
                                      7

appearance form declared that the form “must be completed in full

including a statement of facts specifying grounds for challenging the

violation notice.” The request for a hearing, non-appearance form listed

certain defenses, but it did not mention the option of requesting that

Cedar Rapids institute a municipal infraction action in district court.

      C. Appeal Before Administrative Appeals Board. Although the

ATE ordinance refers to an administrative appeals board, the ordinance

states that the board consisted of “one or more impartial fact finders.”

Cedar Rapids, Iowa, Mun. Code § 61.138(e)(1). In all the administrative

hearings involved in this case, the administrative appeals board

consisted of a single person. While the ordinance calls for an impartial

administrative    appeals   board,   the   ordinance   does   not   establish

procedures or criteria for appointment. The ordinance does not describe

the burden of proof or the procedures to be applied in the administrative

proceedings.

      The plaintiffs in this case received a “Findings, Decision and

Order” in connection with their administrative appeals.             A person

identified as an “Administrative Hearing Officer” signed the documents.

The documents declared “IT IS ORDERED” that liability has been

determined and presented a dollar amount representing a “JUDGMENT

TOTAL.” The findings, decision, and order expressly advised recipients of

the option of requesting that a municipal infraction be issued and filed in

district court.

      D. IDOT Rulemaking and Enforcement Actions.

      1. IDOT rules related to ATE systems.        Several years after the

Cedar Rapids ATE system commenced operation, in February of 2014,

the IDOT promulgated administrative rules relating to ATE systems.

Iowa Admin. Code ch. 761—144. The rules declared that their purpose
                                    8

was “to establish requirements, procedures, and responsibilities in the

use of automated traffic enforcement systems on the primary road

system” and to “ensure[] consistency statewide” in their use. Id. r. 761—

144.1.

       The IDOT rules sharply restricted the implementation of ATE

systems on primary roadways. The rules directed that ATE systems were

to be considered only “after other engineering and enforcement solutions

have been explored and implemented” and were not to be used as a long-

term solution to speeding or red-light running. Id. r. 761—144.4(1)(a)–

(b).   The rules provided that ATE systems were to be used only “in

extremely limited situations on interstate roads because [such roads] are

the safest class of any roadway in the state and typically . . . carry a

significant amount of non-familiar motorists.”    Id. r. 761—144.4(1)(c).

The rules further stated that ATE systems shall only be considered “in

areas with a documented high-crash or high-risk location” in “[a]n area

or intersection with a significant history of crashes which can be

attributed to red-light running or speeding,” or “[a] school zone.”    Id.

r. 761—144.4(1)(d).

       The IDOT rules contained minimum requirements for the operation

of ATE systems. Id. r. 761—144.6. Among other requirements, the rules

provided that ATE systems could not “be placed within the first 1,000

feet of a lower speed limit.” Id. r. 761—144.6(b)(10). The rules required

that ATE “fixed systems” be calibrated at least quarterly “by a local law

enforcement officer trained in the use and calibration of the system.” Id.

r. 761—144.6(4).

       The IDOT rules required that each jurisdiction with an active ATE

system on primary highways prepare an annual report on the operation

of the system and submit the report to the IDOT. Id. r. 761—144.7(1)–
                                          9

(2). The local evaluation was to include (1) an analysis of the impact of

the ATE system in reducing speeds or red-light running; (2) the number

and   type   of   collisions   at   the       sites,   including   before-and-after

implementation comparisons; (3) an evaluation of the ATE system’s

impact on critical safety issues; (4) the total number of citations issued

during each calendar year; and (5) certification that the calibration

requirements of the rule had been met. Id. r. 761—144.7(1)(a)(1)–(5).

      Upon receipt of the annual report, the IDOT used the information

from the report to reevaluate the continued use of the ATE system. Id.

r. 761—144.8(1).    The rules provided that continued use of the ATE

system was contingent upon the effectiveness of the system, appropriate

administration by the local jurisdiction, continued compliance with ATE

rules, changes in traffic patterns, infrastructure improvements, and

implementation of other identified safety measures. Id. r. 761—144.8(1)–

(2). The IDOT “reserve[d] the right to require removal or modification of a

system in a particular location, as deemed appropriate.”              Id. r. 761—

144.8(2).

      We recently considered the question of whether the IDOT had

authority to promulgate its ATE rules. See City of Des Moines v. Iowa

Dep’t of Transp., 911 N.W.2d 431 (2018). We concluded that the IDOT

lacked the necessary statutory authority. Id. at 449–50. As a result, the

IDOT rules are invalid and not enforceable in this case. Nonetheless, to

the extent the studies conducted pursuant to the invalid rules relate to

safety matters, we consider the findings as part of this appeal.

      2. IDOT evaluation of Cedar Rapids ATE sites on I-380.                    On

March 17, 2015, the IDOT issued an evaluation of Cedar Rapids’ ATE

program. In terms of general findings related to the ATE system on I-

380, the IDOT noted that there were eighty-two crashes in 2008 and
                                    10

2009 prior to ATE implementation and fifty-nine crashes in the 2012 and

2013, two years after the implementation in 2010.        The IDOT report

noted that the greatest area of safety concern was an “S” curve in

downtown Cedar Rapids. The IDOT stressed that the dangers associated

with the “S” curve, however, were in entering the “S” curve, not leaving

the “S” curve.   The IDOT noted, echoing its rules, that ATE systems

should only be considered in “extremely limited situations on interstate

roads because they are the safest class of any roadway in the state and

they typically carry a significant amount of non-familiar motorists.” The

IDOT reported that many safety countermeasures had been added to this

section of the roadway since a safety audit conducted in 2008 and

published in 2009.

      The IDOT report proceeded to evaluate each of the four ATE sites

on I-380. With respect to the site on I-380 northbound near Diagonal

Drive, the IDOT concluded that because the current equipment was

located 859 feet beyond a reduction in speed limit from sixty to fifty-five

miles per hour, the equipment should be moved to the next truss to the

north to ensure the equipment complied with the 1000-foot requirement

of rule 761—144.6(1)(b)(10).    The IDOT evaluation came to a similar

conclusion with respect to the ATE site on I-380 southbound near J

Avenue. There, the ATE cameras were located 896 feet beyond a change

of speed instead of the 1000 feet required by the IDOT rule.

      Two other Cedar Rapids ATE sites, however, received different

treatment.   The IDOT evaluation concluded that the ATE site at I-380

northbound near J Avenue and the site at I-380 southbound near the lst

Avenue ramp should be removed or disabled.        According to the IDOT,

these two ATE systems were located either well beyond or mostly beyond

the area of concern presented by the “S” curve. Further, with respect to
                                       11

the site at I-380 northbound near J Avenue, the IDOT found that the

issuance of speeding citations in excess of 30,000 per year was

“extremely high.”

        Cedar Rapids appealed the IDOT evaluation to the director. Cedar

Rapids raised issues concerning the IDOT’s legal authority to implement

its ATE rules, Cedar Rapids’ home rule authority, and the procedure the

IDOT followed regarding its ATE rules.       Cedar Rapids also appears to

have asserted that the IDOT rules did not apply retroactively to ATE

systems in place prior to the rules promulgation.

        E. Notices   of   Violations   and   Administrative     Proceedings

Involving Plaintiffs.

        1. Jeffrey Olson. Jeffrey Olson resides in Bloomington, Minnesota.

He received a notice of violation alleging that on April 3, 2015, a vehicle

owned by him violated the Cedar Rapids ATE ordinance at I-380

southbound, J Avenue exit. Olson challenged the citation.

        Olson submitted a statement to Cedar Rapids detailing his reasons

for contesting the charge.    Olson stated that the IDOT had found the

particular camera on the J Avenue exit noncompliant with state

regulations and that Cedar Rapids had not remedied the noncompliance.

He noted the equipment violated the regulation requiring that an ATE

system not be placed within the first 1000 feet of a lower speed limit.

Olson stated that he also could find no evidence that Cedar Rapids

quarterly calibrated the radar and camera equipment as required by

state regulations. Olson further stated that the cameras were not placed

close enough to the “S” curve, a perceived safety hazard, to promote

public safety.

        In addition to questioning the enforcement of a citation that is

based     upon   a   noncompliant      ATE   site,   Olson   stated   it   was
                                         12

unconstitutional to fine an owner for a moving violation without proving

that the owner was, in fact, in control of and operating the vehicle at the

time   of   the   alleged   violation.        Further,   Olson   claimed   it   was

unconstitutional to charge a driver with a moving violation without the

driver being able to face and question the accuser, which is impossible

with an automated system.

       The administrative hearing officer rejected Olson’s challenge. On a

form letter headed with the address of the Cedar Rapids Police

Department, Verle Allen, an “Administrative Hearing Officer,” made a

finding of “liable” and in notes, stated “[c]itation sustained.” Olson paid

the fine.

       2. Dennis Behm. Dennis Behm resides in Atwater, Minnesota. He

received a notice of violation alleging that on April 11, 2015, a vehicle

owned by him operated in violation of the Cedar Rapids ATE ordinance at

I-380 northbound, J Avenue exit.          Behm filed a written response with

Cedar Rapids, asserting that the IDOT had ordered the removal of the

camera at the location. The hearing officer, Chris Mayfield, on the same

form utilized in the Olson matter, found Behm “liable” and the “[c]itation

sustained.”

       3. Bobby Lee Langston and David Brodsky. Bobby Lee Langston

and David Brodsky reside in Iowa City, Iowa. They received two notices

of violation alleging that on April 25, 2015, a vehicle they owned violated

the Cedar Rapids ATE ordinance.           One violation allegedly occurred at

7:30 p.m., at I-380 northbound, Diagonal Drive exit, while the other

violation allegedly occurred at I-380 southbound, 1st Avenue West exit,

at 8:02 p.m. Langston and Brodsky challenged the citations. Brodsky

appeared at the administrative hearing.
                                      13

        The hearing officer, Chris Mayfield, dismissed one of the violations.

With respect to the remaining violation, the hearing officer used the same

form and had the same notations as other orders in which the owner was

found to have violated the ordinance and the citation was sustained.

        4. Geoff Smith. Geoff Smith resides in Aloha, Oregon. He received

two notices of violation alleging that on June 8, 2015, a vehicle owned by

him violated the Cedar Rapids ATE ordinance at I-380 northbound,

Diagonal Drive exit, and again two minutes later, at I-380 northbound, J

Avenue exit. He challenged the violations. At the administrative hearing,

hearing officer Verle Allen found Smith “liable” for one violation, but the

other violation does not appear to have been addressed. Smith paid the

fine.

        5. Burton Brooks. Burton Brooks resides in Putnam, Illinois. He

received a notice of violation alleging a speeding event on June 19, 2015,

at I-380 southbound, J Avenue exit. He contested the violation. In a

written submission, he stated he was a disabled American veteran on

vacation with his wife when he drove through Cedar Rapids. He stated

that he made a habit of observing the speed limit as demonstrated by the

fact that he had not received a speeding ticket in thirty years.          He

suggested that the camera malfunctioned or that, as a stranger to Cedar

Rapids, he did not have enough time to adjust to the speed limit. He

asked that the matter be dismissed and promised “to be aware next time

I vacation in your beautiful city.”

        Hearing officer Chris Mayfield dismissed the citation, stating,

“[E]vidence shown could not prove the citizen’s fault.” The hearing officer

offered some friendly advice, namely “warning, please slow down.”

        F. Overview of Plaintiffs’ Petition. The plaintiffs filed an action

in district court challenging the lawfulness of the Cedar Rapids ATE
                                     14

ordinance.    Article I, count I of the petition sought a declaratory

judgment against the City. Article I, count I is a sprawling pleading that

includes at least eight often overlapping and interwoven constitutional

and statutory claims.

      The plaintiffs first assert a statutory claim that the ATE system

with its administrative hearing approach provides an irreconcilably

different process than the small claims approach for municipal

infractions, which they assert Iowa Code section 602.6101 requires.

Section 602.6101 provides that the district court “has exclusive, general,

and original jurisdiction of all actions . . . except in cases where exclusive

or concurrent jurisdiction is conferred on some other court, tribunal, or

administrative body.” Iowa Code § 602.6101.

      The plaintiffs further assert that the ATE system and its

administrative hearing is irreconcilable with Iowa Code section 364.22(6).

Section 364.22(2) states “[a] city by ordinance may provide that a

violation of an ordinance is a municipal infraction.”        Id. § 364.22(2).

Iowa Code section 364.22(6) then provides that a municipal infraction is

to be tried in district court “in the same manner as a small claim,” and

“the city has the burden” to prove the violation occurred by “clear,

satisfactory, and convincing evidence.”

      Next, the plaintiffs allege numerous violations of the equal

protection clause and the privileges and immunities clause of article I,

section 6 of the Iowa Constitution. The plaintiffs assert the ATE system

treats various classes of Iowa citizens and out-of-state citizens differently

in violation of the fundamental right to travel, which plaintiffs claim

triggers strict scrutiny. The plaintiffs allege that the use of the National
                                       15

Law Enforcement Telecommunications System database (Nlets), 2 where

the license plates of various vehicles such as semi-trailer trucks and

government-owned vehicles have been “suppressed,” is a violation of

equal protection. The plaintiffs allege a violation of the Iowa privileges

and immunities clause because the “compressed distances” between the

change in speed limits and the location of the cameras has a

disproportionate impact on out-of-state drivers.

      The plaintiffs’ petition alleges due process violations under the

Iowa Constitution “due to the scheme’s many failures.”            Among other

things, they assert that due process violations arise because the camera

placements are not sufficiently advertised to the public, the camera

placements are in areas not correlated with significant safety issues,

owners of cited vehicles lack actual notice of all reasonable and

applicable defenses, and owners of cited vehicles lack notice of the

availability of direct access to the Iowa courts with respect to alleged ATE

violations.    The plaintiffs also claim the ATE system violates the Iowa

Constitution—apparently due process—because it has continued to

operate in violation of the IDOT’s administrative rules and regulations

and corresponding evaluation order and is therefore “invalid as the State

has presumptively held that there is no legitimate state interest in the

operation of these cameras.”

      Based on the above theories, the plaintiffs sought relief beyond a

declaratory ruling. The plaintiffs also sought certification of classes of

vehicle owners, damages against the defendants for claims arising under

the Iowa Constitution, a refund of amounts paid to Cedar Rapids and


      2Nletsis a law-enforcement database maintained by the International Justice
and Public Safety Network. Nlets, https://www.nlets.org/ (last accessed July 25,
2018).
                                         16

Gatso    under    an     unjust   enrichment      theory,   and   temporary     and

permanent injunctive relief.

        G. District Court Ruling on Summary Judgment.                    The City

moved for summary judgment on all issues. The district court granted

the motion.

        With   respect    to   the   Iowa     constitutional   claims   based    on

substantive      due   process,      equal    protection,   and   privileges    and

immunities, the district court recognized federal caselaw held the right to

interstate travel was fundamental under the United States Constitution

and assumed a fundamental right to intrastate travel under the Iowa

Constitution. Citing federal caselaw, the court concluded the plaintiffs

failed to show the directness and substantiality required for an

infringement of the fundamental right to travel and, as a result, the

challenges to the ordinance and its implementation based on substantive

due process, equal protection, and privileges and immunities would be

evaluated using a rational basis test.            See Hughes v. City of Cedar

Rapids, 112 F. Supp. 3d 817, 839 (N.D. Iowa 2015) (concluding that in

order to show the fundamental right to travel has been infringed, the

court looks to “[t]he directness and substantiality of the interference with

the fundamental right at issue” (quoting Zablocki v. Redhail, 434 U.S.

374, 387 N.12, 98 S. Ct. 673, 681 n.12 (1978))), aff’d in part, rev’d in

part, 840 F.3d 987 (8th Cir. 2016).

        In applying the rational basis test, the district court emphasized

that under principles described in a trio of cases, the challenger had to

negate every reasonable basis upon which the legislation may be

sustained, see Varnum v. Brien, 763 N.W.2d 862, 879 (Iowa 2009), the

legitimate government interest in the ordinance may be sufficient if it is

“realistically conceivable,” Racing Ass’n of Cent. Iowa v. Fitzgerald (RACI
                                        17

II), 675 N.W.2d 1, 7 (Iowa 2004) (emphasis omitted) (quoting Miller v.

Boone Cty. Hosp., 394 N.W.2d 776, 779 (Iowa 1986)), and a significant

degree of underinclusiveness and/or overinclusiveness is tolerated,

Vance v. Bradley, 440 U.S. 93, 108–09, 99 S. Ct. 939, 948 (1979). Citing

King v. State, 818 N.W.2d 1, 32 (Iowa 2012), the court noted that

typically the rational basis test for equal protection is also applied with

respect to a substantive due process analysis.

      Applying    these   principles,    the        district   court    rejected   the

substantive due process, equal protection, and privileges and immunities

claims.   Relying on Hughes, the court concluded that the City could

rationally conclude that the system would reduce the number of people

violating traffic laws while simultaneously raising funds for the City. See

112 F. Supp. 3d at 840.      The court further noted that Cedar Rapids

could rationally conclude that a system that only photographs rear

license plates is less expensive and that capturing fewer people who

violate the ordinance with a less expensive system is more cost-effective.

The    district   court   concluded          that      the     “minor     degree    of

underinclusiveness” caused by the resulting exemption of semi-trailer

trucks and government-owned vehicles from the threat of ATE citation

was insufficient to render the ordinance unconstitutional under due

process, equal protection, and privileges and immunities theories.

      The district court recognized that the IDOT had determined that

the equipment placed at the I-380 locations was not necessary for public

safety. Even so, the court reasoned, the City has a legitimate interest in

enforcing the speed limit within the City limits and the ATE system is

rationally related to that interest. In any event, the court stated that the

IDOT is not the final arbiter of the constitutional legitimacy of the

ordinance.
                                     18

      The district court rejected the plaintiff’s procedural due process

claim along the same lines as the federal district court in Hughes, 112 F.

Supp. 3d 817. Applying the balancing test of Mathews v. Eldridge, 424

U.S. 319, 335, 96 S. Ct. 893, 903 (1976), the court observed that a civil

fine of between $25 and $750 was not a particularly weighty property

interest.    The court noted that the risk of erroneous deprivation was

slight given the two options in the ordinance to contest the fine. Further,

the court concluded that requiring the government to allow citations to

be contested only through the court system would impose a significant

additional workload on already burdened state courts.

      The district court also rejected the plaintiffs’ unlawful-delegation-

of-power claim. According to the court, Gatso’s initial screening process

involved little discretion and the plaintiffs did not provide facts indicating

otherwise.     The court further noted that it did not find admissible

evidence showing the acts of running license plate numbers to identify

registered vehicle owners, calibrating the ATE equipment, mailing out

notices, or maintaining Cedar Rapids’ ATE hotline or webpage involved

significant discretion on Gatso’s part.     Further, the court noted that

Cedar Rapids police officers were responsible for the ultimate decision

regarding who was issued ATE citations.

      The district court next addressed the plaintiffs’ argument that

provisions of Iowa law preempted the administrative remedies in the

ordinance.     The court rejected the claim, emphasizing that the ATE

ordinance is not preempted by Iowa Code section 364.22(4), (6) and

section 602.6101 because the ordinance simply provides plaintiffs with

an additional forum to challenge the ATE citations. The court, however,

did not address the claim that the IDOT’s regulations preempted the

City’s actions.
                                       19

      Finally,   the   district    court   addressed   the   plaintiffs’   unjust

enrichment claim. The court concluded that because the ordinance was

constitutional, there was no basis for an unjust enrichment claim.

      Plaintiffs appealed.        We transferred the case to the court of

appeals.

      H. Court of Appeals Opinion.            The court of appeals affirmed,

generally applying reasoning similar to the district court. With respect to

plaintiffs’ claim that Iowa statutes preempted the ordinance, however,

the court of appeals engaged in additional analysis. The court noted the

argument was based upon implied rather than express preemption. The

court recognized that a municipality cannot enact an ordinance that

expressly or impliedly conflicts with state law. See City of Sioux City v.

Jacobsma, 862 N.W.2d 335, 353 (Iowa 2015). The court, however, cited

federal authority for the proposition that the ATE ordinance was not

impliedly preempted. See Brooks v. City of Des Moines, 844 F.3d 978,

980 (8th Cir. 2016); Hughes, 112 F. Supp. 3d at 849. Further, the court

of appeals also cited City of Davenport v. Seymour, 755 N.W.2d 533, 542

(Iowa 2008), and Goodell v. Humboldt County, 575 N.W.2d 486, 500 (Iowa

1998), for the proposition that an exercise of city power is not

inconsistent with state law unless it is irreconcilable with state law.

Relying on these principles, the court of appeals found no implied

preemption.

      II. Standard of Review.

      A motion for summary judgment is appropriately granted when

“there is no genuine issue as to any material fact and . . . the moving

party is entitled to a judgment as a matter of law.”           Iowa R. Civ. P.

1.981(3).   “We review the legal issues necessary for resolution of the

constitutional claims presented within the context of the summary
                                      20

judgment proceeding de novo.” Varnum, 763 N.W.2d at 874; Kistler v.

City of Perry, 719 N.W.2d 804, 805 (Iowa 2006). We review all other legal

issues for correction of errors at law.     Mueller v. Wellmark, Inc., 818

N.W.2d 244, 253 (Iowa 2012).

      The burden of showing undisputed facts entitled it to summary

judgment rests on the moving party. See, e.g., Swainston v. Am. Family

Mut. Ins., 774 N.W.2d 478, 481 (Iowa 2009) (stating “the moving party

must affirmatively establish the existence of undisputed facts entitling

that party to a particular result” (quoting Interstate Power Co. v. Ins. Co.

of N. Am., 603 N.W.2d 751, 756 (Iowa 1999)); K & W Elec., Inc. v. State,

712 N.W.2d 107, 112 (Iowa 2006) (same); Red Giant Oil Co. v. Lawlor,

528 N.W.2d 524, 528 (Iowa 1995) (“The burden is on the moving party to

show the absence of a material fact issue . . . .”). This burden remains

with the moving party at all times. Interstate Power, 603 N.W.2d at 756.

A moving party cannot shift the burden to the other party through a

conclusory motion for summary judgment not supported by undisputed

facts. See id.; Midwest Mgmt. Corp. v. Stephens, 291 N.W.2d 896, 900

(Iowa 1980) (noting the other party need not file a resistance to a motion

for summary judgment to prevail if the moving party has not met its

burden to show the absence of a genuine issue); Am. Tel. & Tel. Co. v.

Dubuque Commc’ns Corp., 231 N.W.2d 12, 15 (Iowa 1975) (“A summary

judgment is neither a method of avoiding the necessity of proving one’s

case nor a clever procedural gambit whereby a claimant can shift to his

adversary his burden of proof on one or more issues.” (quoting United

States v. Dibble, 429 F.2d 598, 601 (9th Cir. 1970))).

      III. Overview of Controversy Surrounding ATE Systems.

      In   recent   decades,   many    cities   across    the   country   have

implemented    ATE    systems.        ATE   systems      have   proven    quite
                                    21

controversial. Advocates say that ATE systems are efficient and promote

public safety, while opponents view ATE systems as simply a money grab

by cash-strapped municipalities, assisted by private vendors seeking to

promote profits and not public safety.      Academic commentators have

joined the fray with gusto.     See, e.g., Andrew Askland, Photo Radar

Enforcement: A Brief Stall on a Slippery Slope?, 19 B.U. J. Sci. & Tech. L.

1, 4–7 (2013) [hereinafter Askland]; Jennifer M. Lancaster, Case Note,

You’ve Got Mail: Analyzing the Constitutionality of Speeding Cameras in

City of Moline Acres v. Brennan, 470 S.W.3d 367 (Mo. 2015), 41 S. Ill. U.

L.J. 485, 502 (2017); Paul McNaughton, Comment, Photo Enforcement

Programs: Are They Permissible Under the United States Constitution?, 43

J. Marshall L. Rev. 463, 489 (2010); Kevin P. Shannon, Note, Speeding

Towards Disaster: How Cleveland’s Traffic Cameras Violate the Ohio

Constitution, 55 Clev. St. L. Rev. 607, 635–36 (2007); Thomas M. Stanek,

Note, Photo Radar in Arizona: Is it Constitutional?, 30 Ariz. St. L.J. 1209,

1243 (1998).

      Plaintiffs have attacked ATE systems in beehive litigation with

statutory and constitutional theories.      Plaintiffs have asserted that

substantive and notice provisions of ATE systems are preempted by state

law or that the ATE systems otherwise violate provisions of state law.

See, e.g., Leonte v. ACS State & Local Sols., Inc., 19 Cal. Rptr. 3d 879,

883–84 (Ct. App. 2004); State v. Kuhlman, 729 N.W.2d 577, 579 (Minn.

2007); Mendenhall v. City of Akron, 881 N.E.2d 255, 260 (Ohio 2008); cf.

City of Commerce City v. State, 40 P.3d 1273, 1277–78 (Colo. 2002) (en

banc). Plaintiffs have claimed that ATE systems amount to an unlawful

tax under state law. See Ballard v. City of Creve Coeur, 419 S.W.3d 109,

122 (Mo. Ct. App. 2013) (successfully overturning a motion to dismiss on

the issue).    Plaintiffs have attacked ATE systems for failure to comply
                                    22

with notice and remedial provisions of state law.      See, e.g., Tonner v.

Paradise Valley Magistrate’s Ct., 831 P.2d 448, 450 (Ariz. Ct. App. 1992)

(holding notice of ticket must meet statutory requirements for service);

City of Moline Acres v. Brennan, 470 S.W.3d 367, 382 (Mo. 2015) (en

banc) (finding notice demanding payment an unlawful “shortcut around

the judicial system”); City of Springfield v. Belt, 307 S.W.3d 649, 653 (Mo.

2010) (en banc) (holding proceeding overseen by “hearing examiner”

violates statutory requirement that municipal ordinance violations be

heard before divisions of circuit court); Walker v. City of Toledo, 39

N.E.3d 474, 480 (Ohio 2014) (holding municipal courts do not have

exclusive authority over traffic-ordinance violations).     Plaintiffs have

raised a wide variety of constitutional attacks, including substantive and

procedural due process, equal protection, and delegation of powers. See,

e.g., Hughes, 840 F.3d at 996; Bevis v. City of New Orleans, 686 F.3d

277, 280–81 (5th Cir. 2012); Idris v. City of Chicago, 552 F.3d 564, 565

(7th Cir. 2009); Falkner v. City of Chicago, 150 F. Supp. 3d 973, 976

(N.D. Ill. 2015); Leder v. Am. Traffic Sols., Inc., 81 F. Supp. 3d 211, 223

(E.D.N.Y. 2015); Gardner v. City of Cleveland, 656 F. Supp. 2d 751, 758,

760 (N.D. Ohio 2009); Sevin v. Parish of Jefferson, 621 F. Supp. 2d 372,

384–85 (E.D. La. 2009); Shavitz v. City of High Point, 270 F. Supp. 2d

702, 707 (M.D.N.C. 2003); Agomo v. Fenty, 916 A.2d 181, 183 (D.C.

2007); City of Hollywood v. Arem, 154 So. 3d 359, 365 (Fla. Dist. Ct. App.

2014), disapproved of by Jimenez v. State (Jimenez II), 246 So. 3d 219

(Fla. 2018); Fischetti v. Village of Schaumburg, 967 N.E.2d 950, 959 (Ill.

App. Ct. 2012).

      The controversy over ATE systems has drawn legislative as well as

judicial attention. Some states, like Iowa, have declined to enact specific

statewide regulation of ATE systems.      See, e.g., Pepper v. St. Charles
                                   23

County, 517 S.W.3d 590, 598 (Mo. Ct. App. 2017); Walker, 39 N.E.3d at

479.   See generally Jeffrey A. Parness, Beyond Red Light Enforcement

Against the Guilty but Innocent: Local Regulations of Secondary Culprits,

47 Willamette L. Rev. 259, 265 (2011).      Other states have taken the

opposite approach and banned them. See Mont. Code Ann. § 61-8-206

(West, Westlaw current through 2017 Sess.). A number of other states

have adopted a regulatory approach that permits ATE systems under

certain circumstances.     In states that have adopted a regulatory

approach, the statutes deal with a wide variety of ATE issues.        The

statutes address issues such as the permissible location of ATE systems,

their manner of operation, the notices required to support an ATE

system, and the manner in which vendors who participate in ATE

systems may be compensated.        See, e.g., Ark. Code Ann. § 27-52-

110(c)(1) (West, Westlaw current through 2018 Fiscal Sess. & 2d

Extraordinary Sess.) (limiting placement to school zones and railroad

crossings); Colo. Rev. Stat. Ann. § 42-4-110.5 (West, Westlaw current

through 2018 2d Reg. Sess.) (requiring sign placement in conspicuous

places not fewer than 200 feet and no more than 500 feet before

automated vehicle identification system); Fla. Stat. Ann. § 316.0083

(West, Westlaw current through 2018 2d Reg. Sess.) (authorizing notice

by first class mail and prohibiting fees based on tickets issued), held

unconstitutional as applied in City of Fort Lauderdale v. Dhar, 185 So. 3d

1232, 1236 (Fla. 2016); N.C. Gen. Stat. Ann. § 160A-300.1 (authorizing

first-class notice).

       We have had two occasions to consider the validity of ATE systems.

In Seymour, we considered whether ATE systems were impliedly

preempted by provisions of Iowa law related to traffic regulation under
                                       24

Iowa Code chapter 321. 755 N.W.2d at 535. We concluded that they

were not. Id.

         In Jacobsma, we considered a number of questions related to an

ATE system in Sioux City.        862 N.W.2d at 337.       We upheld an ATE

system that established a rebuttable presumption that the vehicle’s

owner was the driver from an Iowa and federal due process attack. Id. at

339, 346. Citing RACI II, we rejected a substantive due process attack,

noting that the plaintiff had not developed a record suggesting that the

city’s    interest   was   “insubstantial   or   empirically   unsustainable.”

Jacobsma, 862 N.W.2d at 347–48; see RACI II, 675 N.W.2d at 74. We

also rejected an attack on the Sioux City ATE system under the

inalienable rights clause of article I, section 1 of the Iowa Constitution.

Jacobsma, 862 N.W.2d at 352–53.

     IV. Substantive Iowa Constitutional Challenges: Substantive
Due Process, Equal Protection, and Privileges and Immunities.

         A. Introduction.     In this case, plaintiffs launch their equal

protection, privileges and immunities, and substantive due process

claims under the Iowa Constitution. They seek monetary, declaratory,

and injunctive relief on these theories. Plaintiffs do not make parallel
claims under the United States Constitution.

         As presented by the plaintiffs, the three state constitutional claims

of equal protection, privileges and immunities, and substantive due

process are closely interwoven. Plaintiffs, as well as the defendants, do

not utilize a different framework for analysis of equal protection and

privileges and immunities. There is Iowa authority for this proposition.

See Perkins v. Bd. of Supervisors, 636 N.W.2d 58, 73 (Iowa 2001).           In

light of the positions of the parties, we have no occasion to consider

whether these claims should be pulled apart.
                                     25

      Further, while their substantive due process claims attack the ATE

system as a whole and do not involve classifications, the plaintiffs employ

a tiered framework for substantive due process that is indistinguishable

from their approach to the equal protection and privileges and

immunities claims. As a result, the analysis of substantive due process

as presented by the parties has substantial overlap with the equal

protection and privileges and immunities claims.

      The tiered approach to these constitutional provisions is a familiar

one that has been employed by the United States Supreme Court for

some time. See City of Cleburne v. Cleburne Living Ctr., 473 U.S. 432,

440–41, 105 S. Ct. 3249, 3254–55 (1985).       The tiered approach of the

United States Supreme Court has its critics. For instance, critics have

noted the variability in the application of the rational basis test, where in

some cases it is extraordinary deferential, in other cases it is notably

more demanding. See, e.g., Jacobsma, 862 N.W.2d at 347 n.3; County of

Portage v. Steinpreis, 312 N.W.2d 731, 741 n.4 (Wis. 1981) (Abrahamson,

J., dissenting); Kenji Yoshino, The New Equal Protection, 124 Harv. L.

Rev. 747, 759 (2011) [hereinafter Yoshino] (noting that rational basis

review takes two forms, ordinary rational basis review and rational basis

review “with bite”).    It has been suggested that the United States

Supreme Court abandon, or at least refine, its tiered approach. Jeffrey

M. Shaman, Equality and Liberty in the Golden Age of State Constitutional

Law 13 (2008) (noting “multi-tier system has proven to be unduly rigid”).

      There is, of course, no requirement that states recognize as

“fundamental” only those interests so recognized by the United States

Supreme Court in its constitutional analysis. While the United States

Supreme Court has rejected the right to education as a “fundamental

interest,” San Antonio Indep. Sch. Dist. v. Rodriguez, 411 U.S. 1, 37, 93
                                         26

S. Ct. 1278, 1299 (1973), other states (not including Iowa), have declined

to follow the Supreme Court’s lead, see, e.g., Serrano v. Priest, 557 P.2d

929 (Cal. 1976) (en banc) (reaffirming under state constitution “education

is a fundamental interest”); Idaho Sch. for Equal Educ. Opportunity v.

Evans, 850 P.2d 724, 734–35 (Idaho 1993) (applying intermediate

standard      of   review   to   equal   protection   challenge   under   state

constitution); Edgewood Indep. Sch. Dist. v. Kirby, 777 S.W.2d 391, 392

(Tex.1989) (finding constitutional mandate under state constitution to

provide for education); see also Lake View Sch. Dist. No. 25 v. Huckabee,

91 S.W.3d 472, 479 (Ark. 2002) (“Nevertheless, because we conclude that

the clear language of Article 14 imposes upon the State an absolute

constitutional duty to educate our children, we conclude that it is

unnecessary to reach the issue of whether a fundamental right is also

implied.”).

      A number of states have adopted different tests for substantive due

process and equal protection claims under their state constitutions when

fundamental interests are not implicated.             For instance, in South

Dakota, the rational basis test utilized in substantive due process

requires “a real and substantial relation” between a statute and the

objects sought to be obtained. Katz v. S.D. Bd. of Med. & Osteopathic

Exam’rs, 432 N.W.2d 274, 278 & n.6 (S.D. 1988).              The New Jersey

Supreme Court has rejected the federal approach in favor of a balancing

test. See Planned Parenthood of Cen. N.J. v. Farmer, 762 A.2d 620, 633–

38 (N.J. 2000).      The Minnesota Supreme Court has been unwilling to

hypothesize a rational basis not asserted in support of a statute, has

required that statutory distinctions “must be genuine and substantial,”

and has stated that there must be “a reasonable connection between the

actual . . . effect of the challenged classification and the statutory goals.”
                                         27

State v. Russell, 477 N.W.2d 886, 888–89 (Minn. 1991) (first quoting

Wegan v. Village of Lexington, 309 N.W.2d 273, 280 (Minn. 1981)). The

Supreme Courts of Alaska and Vermont have adopted a sliding-scale-

type approach to equal protection that can lead to a more stringent

review when fundamental interests are not involved.                See Alaska Pac.

Assurance Co. v. Brown, 687 P.2d 264, 269 (Alaska 1984); Baker v. State,

744 A.2d 864, 873 (Vt. 1999). A body of the academic literature has long

recognized and often advocated that states may develop their own equal

protection and substantive due process doctrine.              See, e.g., Randal S.

Jeffrey, Equal Protection in State Courts: The New Economic Equality

Rights, 17 Law & Ineq. 239, 356–57 (1999); Jeffrey M. Shaman, The

Evolution of Equality in State Constitutional Law, 34 Rutgers L.J. 1013,

1121–23 (2003); Robert F. Williams, Equality Guarantees in State

Constitutional Law, 63 Tex. L. Rev. 1195, 1222–24 (1985).

       In this case, however, the plaintiffs cite and extensively rely upon 3

RACI II for the proposition that “the claimed state interest must be




       3In  many equal protection and substantive due process cases, litigants simply
do not argue for a different approach under the Iowa Constitution than the prevailing
approach under the Federal Constitution. See, e.g., In re Det. of Hennings, 744 N.W.2d
333, 339–40 (Iowa 2008) (delaying any consideration of independent state constitutional
standard in light of minimal briefing); State v. Simmons, 714 N.W.2d 264, 271 (Iowa
2006) (specifically recognizing that independent state constitutional claim was not
briefed); Sanchez v. State, 692 N.W.2d 812, 819 (Iowa 2005) (noting that neither party
argued for a different standard); Claude v. Guar. Nat’l Ins., 679 N.W.2d 659, 664 n.3
(Iowa 2004) (making specific reference to lack of briefing on independent state
constitutional approach). In these cases, we do not “adopt” the federal interpretation
under the Iowa Constitution, but simply decide the issue as framed by the parties.
Haskenhoff v. Homeland Energy Sols., LLC, 897 N.W.2d 553, 614 (Iowa 2017) (Appel, J.,
concurring in part and dissenting in part) (“When a legal principle is embraced by the
parties by agreement and is not contested on appeal, the court’s subsequent recitation
of the legal principle is not a holding in the case that was a product of an adversary
proceeding.”); see also Freeman v. Grain Processing Corp., 848 N.W.2d 58, 93 (Iowa
2014) (“[W]here a party does not suggest a different standard under Iowa law, we adopt
for the purposes of the case the federal standard . . . .” (Emphasis added.)).
                                          28

‘realistically conceivable’ ” and have a “basis in fact.” 4 675 N.W.2d at 7–8

(emphasis omitted) (first quoting Miller, 394 N.W.2d at 779). In Racing

Ass’n of Central Iowa v. Fitzgerald (RACI I), we originally held that the

legislature’s classification in a taxation statute between land-based

casinos and riverboats violated equal protection under the Fourteenth

Amendment of the United States Constitution.                648 N.W.2d 555, 558,

562 (Iowa 2002). The United States Supreme Court reversed. Fitzgerald

v. Racing Ass’n of Cent. Iowa, 539 U.S. 103, 110, 123 S. Ct. 2156, 2161

(2003).     On remand, we held that, notwithstanding the unanimous

decision of the United States Supreme Court under the Equal Protection

Clause of the Fourteenth Amendment, the classification was nonetheless

invalid under article I, section 6 of the Iowa Constitution. RACI II, 675

N.W.2d at 3. Clearly, our approach to equal protection in RACI II had

more teeth than that employed by the United States Supreme Court.

       An important question in equal protection and due process

settings is the role of fact-finding in determining the validity of the

classification or legislation.       RACI II emphasizes that the legitimate

purpose of the classification must be “realistically conceivable” and have

“a basis in fact.” Id. at 7–8 (emphasis omitted) (first quoting Miller, 394

N.W.2d at 779). On the other hand, we have stated that government “is

not required or expected to produce evidence to justify its legislative

action.” Horsfield Materials, Inc. v. City of Dyersville, 834 N.W.2d 444,

458 (Iowa 2013) (quoting Ames Rental Prop. Ass’n v. City of Ames, 736

N.W.2d 255, 259 (Iowa 2007)).




                 also cite Jacobsma for the proposition that the rational basis test may
       4Plaintiffs

be applied more stringently or with “greater bite” under Iowa’s due process clause than
under federal caselaw. 862 N.W.2d at 347 n.3
                                      29

        We think RACI II and Horsfield may be easily reconciled. While the

state or municipality is not expected or required to produce evidence to

justify its action, a party attacking the classification may do so in an

effort to show that the claimed legitimate interest is either not

“realistically conceivable” or does not have “a basis in fact.” RACI II, 675

N.W.2d at 7–8 (emphasis omitted) (first quoting Miller, 394 N.W.2d at

779).      In other words,     once   the   state   articulates   a   legitimate

governmental interest that appears plausible on the face of the statute,

the burden of coming forward with evidence to attack the asserted

justification shifts to the challenger.

        Our cases support the potential role of fact-finding in the arsenal

of a party attacking legislation under substantive due process, equal

protection, or privileges and immunities.      Decades ago, we repeatedly

noted that changes in circumstances can allow us to find that a statute

is no longer rationally related to its original government purpose. Miller,

394 N.W.2d at 779 (rejecting claimed purposes “[i]n light of present day

conditions”); Bierkamp v. Rogers, 293 N.W.2d 577, 581 (Iowa 1980)

(noting “the passage of time may call for a less deferential standard of

review as the experimental or trial nature of legislation is less evident”).

More recently, in State v. Willard, we noted that the challenger had not

“developed an evidentiary basis for this court to conclude the statute fails

to promote a legitimate government interest.” 756 N.W.2d 207, 213–14

(Iowa 2008).     In Ames Rental Property, we noted that a legislative

judgment “is presumed to be supported by facts known to the

[legislature] unless facts judicially known or proved preclude that

possibility.” 736 N.W.2d at 259–60.

        Our approach in these cases is consistent with equal protection

and due process authorities in other states. A number of states require
                                       30

robust fact-finding in order to evaluate state constitutional challenges to

residency requirements, gay adoptions, and stiff cocaine penalties. See,

e.g., Bruno v. Civil Serv. Comm’n, 440 A.2d 155, 157 (Conn. 1981) (noting

deficiency   in   record   involving   challenge   to   residential   duration

requirement); Cox v. Fla. Dep’t of Health & Rehab. Servs., 656 So. 2d 902,

903 (Fla. 1995) (remanding for “a factual completion of the record” on

challenge to state ban on gay adoptions); State v. Frazier, 649 N.W.2d

828, 833–35 (Minn. 2002) (requiring a factual record to evaluate the

reliability and validity of both data and data analysis presented by the

parties).

      There is also support for the position in the academic literature.

As noted by one commentator, adjudicative facts

      must focus on both the importance of policy and its
      motivation . . . .

             . . . Adjudicative facts for a particular program would
      be part of the calculus and would be useful in determining
      the sincerity of the government objective and smoking out
      any illicit motives.

Angelo N. Ancheta, Science and Constitutional Fact Finding in Equal

Protection Analysis, 69 Ohio State L.J. 1115, 1166, 1169 (2008).

      While there is a role for factual development in Iowa equal

protection, privileges and immunities, and substantive due process

cases, the role of fact-finding in a rational basis review is limited. The

fact-finding is not a robust review where the court substitutes its policy

judgments for that of the legislature. Instead, the fact-finding is limited

to considering whether the asserted purposes of the statute, in light of

the record developed, are realistically conceivable and have a basis in

fact, and whether the means chosen are rationally related to that

legitimate purpose. See RACI II, 675 N.W.2d at 7–8. In the vernacular of
                                       31

RACI II, the rational basis review of classifications is not “toothless” in

the face of strong evidence undermining the legislative means and

purposes, but it is deferential to legislative judgments. Id. at 9. We give

the legislature substantial leeway, particularly in matters involving

highway regulation and safety, but there are judicial guardrails on

legislative action even when applying a rational basis review. Compare

Veach v. Iowa Dep’t of Transp., 374 N.W.2d 248, 249, 250 (Iowa 1985)

(concluding under rational basis test that “State’s interest in public

safety is substantially served by treating people who refuse chemical

testing differently from people who submit to testing”), with Bierkamp,

293 N.W.2d at 582 (concluding no rational relationship existed between

the classifications drawn in the guest statute and its conceivable

purposes of promoting hospitality among automobile drivers and

preventing collusive lawsuits and therefore statute violative of equal

protection under the Iowa Constitution).

        B. Infringement of Fundamental Right to Travel by ATE

System.

        1. Introduction.   An important threshold question for equal

protection, privileges and immunities, and substantive due process

analyses is whether the ATE system in this case infringes on a

fundamental right to intrastate travel.      The parties appear to concede

that if this is so, the ATE system and its classifications would be subject

to strict scrutiny.    On the other hand, if a fundamental right is not

implicated, the ATE system is subject to a less intrusive rational basis

test.

        2. Positions of the parties.   Plaintiffs assert that the ATE system

infringes upon the fundamental right to travel under the Iowa

Constitution.    Plaintiffs note that the fundamental right to interstate
                                     32

travel is well established. See Formaro v. Polk County, 773 N.W.2d 834,

839 (Iowa 2009).      Plaintiffs assert that the cameras on I-380 do not

provide sufficient notice to strangers to Cedar Rapids and that out-of-

state travelers are not treated as welcome visitors. Plaintiffs assert that

out-of-state travelers have a fundamental right not to be subject to a

speed trap in Cedar Rapids, a speed trap whose burdens fall

disproportionately and irrationally, according to plaintiffs, on out-of-state

citizens.

      Further, according to the plaintiffs, there is also a fundamental

right to intrastate travel. Plaintiffs recognize that while Iowa has not yet

expressly adopted a fundamental right to intrastate travel, they urge us

to do so. Plaintiffs claim that a right to travel may be found in the Iowa

Constitution in the privileges and immunities clause of article I, section

6. Plaintiffs note that a number of states in the Midwest and West have

embraced a constitutional right to intrastate travel. See, e.g., Treacy v.

Municipality of Anchorage, 91 P.3d 252, 264–65 (Alaska 2004); State v.

Cuypers, 559 N.W.2d 435, 437 (Minn. Ct. App. 1997); In re Marriage of

Guffin, 209 P.3d 225, 227–28 (Mont. 2009); State v. Burnett, 755 N.E.2d

857, 865 (Ohio 2001); Brandmiller v. Arreola, 544 N.W.2d 894, 899 (Wis.

1996).      The plaintiffs’ citations include descriptions of the right as

including the right “to move from place to place, to walk in the fields in

the country or on the streets of a city, [and] to stand under open sky.”

State v. Shigematsu, 483 P.2d 997, 1001 (Haw. 1971).

      Cedar Rapids concedes, as it must, the existence of a fundamental

right to interstate travel. Cedar Rapids, however, claims that even if the

right exists, it is not infringed by the ATE system. Cedar Rapids notes

that right-to-travel cases generally embrace three components—(1) the

right to leave and enter a state, (2) “the right to be treated as a welcome
                                      33

visitor rather than an unfriendly alien,” and (3) the right to be treated

like other citizens after becoming a permanent resident. Formaro, 773

N.W.2d at 839 (quoting Saenz v. Roe, 526 U.S. 489, 500, 119 S. Ct.

1518, 1525 (1999)).

      Cedar Rapids contends none of these components are infringed on

the record developed in this case. Cedar Rapids suggests ordinary traffic

regulations do not infringe the right to travel. See United States v. Hare,

308 F. Supp. 2d 955, 1001 (D. Neb. 2004). Further, Cedar Rapids points

out that not everything that deters travel burdens the fundamental right

to travel. See Matsuo v. United States, 586 F. 3d 1180, 1183 (9th Cir.

2009).     Cedar Rapids argues that the notice posted on I-380 of the

presence of traffic cameras is exactly the same for out-of-state, in-state,

and local residents.    It further does not serve to make nonresidents

unwelcome visitors and does not discriminate against nonresidents.

      With respect to the right to intrastate travel, Cedar Rapids points

out that we declined to recognize such a right in City of Panora v.

Simmons, 445 N.W.2d 363, 367, 369 (Iowa 1989). In any event, Cedar

Rapids contends that the ATE system no more infringed the right to

intrastate travel than the right to interstate travel.

      3. Discussion.    On the question of whether the ATE ordinance

infringed a fundamental right to interstate or intrastate travel, we agree

with Cedar Rapids.     Like the district court, we assume that rights to

interstate and intrastate travel are fundamental and, if infringed, may

give rise to strict scrutiny under equal protection and substantive due

process.

      But we do not find the ATE ordinance in this case infringed any

right to travel. The term “infringement” in this context is a term of art

with at least some ambiguity, but it clearly does not mean anything that
                                     34

impacts travel. See Matsuo, 586 F.3d at 1184. Yet, if traffic regulations

infringed the right to travel, there could be no traffic regulations. No one,

however, can seriously question the power of the state or a municipality

to impose speed limits on public highways. See Moore v. Supreme Ct.,

447 F. Supp. 527, 531 (D.S.C. 1977) (noting that while a sales tax or

speed limit may influence decisions on whether to travel to a state, such

statutes do not directly impinge on the fundamental right). Speed limits

do not have the function or purpose of penalizing or discouraging travel

itself and ordinarily do not impose substantial burdens on the traveling

public.   See Cramer v. Skinner, 931 F.2d 1020, 1031 (5th Cir. 1991)

(emphasizing minor restrictions on travel do not amount to denial of a

fundamental right). It is not surprising that courts that have considered

the validity of ATE systems have not found the right to travel infringed by

their enforcement. See Hughes, 840 F.3d at 995.

      For the above reasons, we conclude that there is no basis to

examine the constitutional validity of the ATE system using strict

scrutiny arising from alleged infringement of the right to intrastate or

interstate travel. Instead, we apply the RACI II rational basis test “with

bite.” See Yoshino, 124 Harv. L. Rev. at 759.

      C. Substantive Due Process.

      1. Introduction. We now turn to the question of whether the ATE

system violates substantive due process as the plaintiffs’ claim. Under

substantive due process, some government deprivations of life, liberty, or

property may be unconstitutional regardless of the adequacy of the

procedures deployed.    Pearson v. City of Grand Blanc, 961 F.2d 1211,

1216 (6th Cir. 1992).
                                           35

       Like its cousin equal protection, substantive due process is most

robust when fundamental interests are involved. 5 State v. Klawonn, 609

N.W.2d 515, 519 (Iowa 2000). Here, however, we have determined that

there is no fundamental interest in the right to travel infringed by the

ordinance.      As a result, Cedar Rapids is not required to show a

compelling interest or that the means chosen to promote that interest are

narrowly tailored to achieve its objectives.

       There are, however, two strands of traditional substantive due

process that have potential application in this case. First, in evaluating

government legislation that involves a life, liberty, or property interest,

there must be a reasonable fit between the government purpose and the

means chosen to advance that purpose. Reno v. Flores, 507 U.S. 292,

305, 113 S. Ct. 1439, 1448–49 (1993).                Evaluating this fit ordinarily

involves application of the rational basis test. Gardner, 656 F. Supp. 2d

at 761.

       Second, a violation of substantive due process may arise from

government action that “shocks the conscience.”                     Zaber v. City of

Dubuque, 89 N.W.2d 634, 640 (Iowa 2010) (quoting Atwood v. Vilsack,

725 N.W.2d 641, 647 (Iowa 2006)). The classic case applying the shocks-

the-conscience component of substantive due process is Rochin v.

California, where government authorities brutally pumped the stomach of

a resisting suspect for evidence of a crime during a warrantless search.

342 U.S. 165, 166, 172, 72 S. Ct. 205, 206, 209 (1952).



       5The   main difference between an equal protection and a substantive due process
argument attacking legislation is that the equal protection argument requires that the
legislation create classes of persons, while the due process claim may be brought where
no classifications are involved or the classification is a class of one. See L.R. McInnis,
The Municipal Management of Emergencies: The Houston Plan, 4 Tex. F. on C.L. & C.R.
139, 152 (1999).
                                     36

      2. Positions of the parties.   The plaintiffs assert that there is no

reasonable fit between Cedar Rapids’ purpose for establishing its ATE

system—public safety—and the means chose to advance it. Plaintiffs rely

heavily on the IDOT evaluation, which ordered the City to remove two of

the camera installations and move the cameras in two other locations.

According to plaintiffs, the IDOT evaluation ordering cameras be removed

from two locations shows that these cameras do not promote public

safety. Plaintiffs further claim that crash data demonstrate there is no

benefit to the cameras on I-380. Further, plaintiffs claim the fact that

citations are increasing, rather than decreasing, demonstrates that the

system is not advancing Cedar Rapids’ safety goals.       Plaintiffs suggest

the lack of support for the safety rationale demonstrates that the real

goal of the City’s ATE program is raising revenue.

      In support of their attack on the relationship between the ATE

system and public safety, plaintiffs cite an affidavit filed by their expert,

Joseph Schofer.     Schofer generally stated that before Cedar Rapids

placed its ATE system at various locations, it should have conducted

comprehensive vehicular speed and crash data analysis to determine

proper placement.     Without such data, it is not possible to know,

according to Schofer, whether a particular location is dangerous enough

to merit the placement of ATE equipment. Based on the facts known to

him, Schofer stated the ATE locations in Cedar Rapids did not appear

dangerous enough to warrant the use of ATE technologies.          Given the

relatively high number of violators, if those numbers are not decreasing,

Schofer opined it would “seem that the principal achievement of the

program is generating revenues . . . rather than one of enhancing the

public safety goal of reducing traffic speed.”
                                      37

      The plaintiffs also incorporate a lack-of-notice theory in their

substantive due process attack.       The plaintiffs claim the IDOT’s order

that cameras be moved in two locations based on their violation of a rule

that cameras not be located within 1000 feet of a posted speed change

shows that the placement of the equipment provided drivers with

insufficient notice of the operation of the ATE system.

      The plaintiffs launch a general arbitrariness attack on the ATE

system.      The plaintiffs assert that the ATE system is arbitrary and

irrational   because   it   burdens   privately   owned   vehicles   but   not

government-owned vehicles or semi-trailer trucks.          Plaintiffs further

suggest that the radar equipment is inadequately calibrated and has an

admitted error rate of two percent, thereby producing arbitrary results.

      Finally, the plaintiffs take great umbrage with the ATE system,

declaring that it offends notions of fairness and human dignity.           See

Blumenthal Inv. Trs. v. City of West Des Moines, 636 N.W.2d 255, 265

(Iowa 2001). They claim that Cedar Rapids’ continued violation of state

law, in the form of the IDOT order, cannot be considered in good faith

and is therefore a violation of substantive due process. This argument

appears to be an expansive version of a shocks-the-conscience test.

      Cedar Rapids responds that under the rational basis test of

substantive due process, it is given considerable leeway. Cedar Rapids

emphasizes there is no requirement that legislation employs the best

means to achieve a legitimate state interest.       See Hensler v. City of

Davenport, 790 N.W.2d 569, 584 (Iowa 2010).

      With respect to the IDOT order, Cedar Rapids notes the IDOT did

not engage in an evidentiary proceeding and did not apply a substantive

due process, rational basis test to the ATE system.          Further, Cedar

Rapids argues applying the substantive due process, rational basis test
                                     38

is a task for a court, not a government agency. Cedar Rapids emphasizes

that a number of courts considering the question have determined that

ATE systems do not violate substantive due process. See Idris, 552 F.3d

at 566; Hughes, 112 F. Supp. 3d at 840; Smith v. City of St. Louis, 409

S.W.3d 404, 425–26 (Mo. Ct. App. 2013).

      Cedar Rapids recognizes that substantive due process prevents the

government from “engaging in conduct that ‘shocks the conscience,’ or

interferes with rights ‘implicit in the concept of ordered liberty.’ ” Zaber,

789 N.W.2d at 640 (quoting Atwood, 725 N.W.2d at 647). The City notes

that the ATE system simply enforces traffic laws with an opportunity to

contest a citation using the administrative process, the courts, or both.

The ATE system certainly does not shock the conscience. See Hughes,

112 F. Supp. 3d at 840 (Cedar Rapids ATE system “does not remotely

approach the level of shocking the conscience”).

      3. Discussion.   We begin our discussion first by considering the

question of whether the plaintiff has met its burden of showing that the

Cedar Rapids ATE system is not a reasonable fit to achieve its legitimate

governmental purpose of public safety. An important part of plaintiffs’

argument is the claim that the IDOT order sufficiently undermines Cedar

Rapids’ safety purpose so as to establish a substantive due process

violation.

      Our decision invalidating the IDOT rules substantially undermines

the plaintiffs’ claims. See City of Des Moines, 911 N.W.2d at 434. In any

event, the IDOT rules related to ATE systems were highly restrictive. The

rules did not establish a floor for determining whether an ATE system

complies with a substantive due process, rational basis test. Instead, the

IDOT rules were part of a quasi-legislative rulemaking process wherein a

government agency considered the degree to which highly controversial
                                    39

ATE systems should be permitted. Even if valid, the IDOT rules would

not supplant the role of the court in determining whether there is a

violation of substantive due process.

      In any event, the IDOT order did not establish that the Cedar

Rapids ATE system is so arbitrary or unrelated to public safety as to

amount to a violation of substantive due process. With respect to two

locations, the IDOT order required a movement of the camera/radar

equipment to comply with an IDOT rule that such equipment not be

placed within 1000 feet of a posted change in speed. Even if the IDOT

report might be cited as establishing a violation of an IDOT rule, a

violation of state law alone does not give rise to a substantive due

process violation.   See Nordlinger v. Hahn, 505 U.S. 1, 26, 112 S. Ct.

2326, 2340 (1992) (Thomas, J., concurring in part and dissenting in

part); Hughes, 840 F.3d at 991; McIntosh v. Patridge, 540 F.3d 315, 323–

24 (5th Cir. 2008); Stern v. Tarrant Cty. Hosp. Dist., 778 F.2d 1052, 1059

(5th Cir. 1985).

      The IDOT’s order that the City remove or disable ATE equipment at

two locations also does not establish a substantive due process violation.

The IDOT order does not suggest that these locations have no

relationship to public safety. Rather, the IDOT order indicates that the

ATE equipment at these locations is “beyond the area of primary

concern,” namely, the area immediately preceding the “S” curve on I-380

in downtown Cedar Rapids. According to the IDOT, ATE systems should

only be considered “in extremely limited situations” on interstate roads

because they are “the safest class of any roadway in the state and

typically carry a significant amount of non-familiar motorists.” The IDOT

order does not make a finding that the equipment did not promote public
                                    40

safety, but only that the placement of the ATE equipment did not meet

the narrow criteria developed for placement of ATE equipment.

      It is, of course, true that the ATE system generates revenues for

Cedar Rapids.    That fact alone does not invalidate the ordinance on

substantive due process grounds in this case. Just as a tax on tobacco

has the potential of deterring youth smoking, Cedar Rapids may

rationally believe that the impositions of fines for speeding violations

generally deters speeding. See Gardner, 656 F. Supp. 2d at 761 (stating

while ATE ordinance “no doubt raise revenue,” it also “serves to promote

safe driving practices”); cf. Randolph Kline et al., Beyond Advertising

Controls: Influencing Junk-Food Marketing and Consumption with Policy

Innovations Developed in Tobacco Control, 39 Loy. L.A. L. Rev. 603, 622 &

n.93 (2006) (“[T]axes help deter smoking by raising the cost of tobacco,

which has been shown to be the most effective approach to lowering

smoking rates, especially among youth, who are generally sensitive to

price increases.”). The fact that speeding violations at locations may not

have declined over certain time periods does not establish a lack of

relationship to public safety, but may be due to increased traffic or other

factors.   Further, Cedar Rapids may rationally conclude that the

incidence of speeding would have been even larger in the absence of ATE

enforcement.

      The plaintiffs raise a series of technical arguments regarding the

accuracy and reliability of the ATE system. While they might conceivably

provide the basis for a defense in a particular case, they do not provide

the basis for a facial challenge to the ATE system on substantive due

process grounds. For instance, while plaintiffs assert an error rate of two

percent, that is actually pretty good and, in any event, a driver has an
                                    41

opportunity to challenge the accuracy of any citation through the

administrative and/or judicial process established by the ATE ordinance.

      Yet, we are troubled by other facts in this record. Cedar Rapids

reaps large amounts of money from the ATE system—millions of dollars

per year. If promoting safety were Cedar Rapids’ real goal, why does the

ordinance penalize vehicle owners and not the drivers where the

deterrence function would be much greater?          The idea that vehicle

owners will be more careful allowing others to drive their vehicles seems

tenuous at best.     One might also wonder why the City maintains a

system generating 35,000 tickets per year at the end of the hazardous

“S” curve when, according to IDOT, most of the danger has passed. This

suggests that the placement of the ATE equipment is concerned with the

generation of money rather than safety.       And, the notice of violation

seems primarily designed to getting money quickly from cited owners by

not candidly advising the owners of their right to a district court

proceeding and by threatening them with the prospect of adverse impact

on their credit rating.

      Yet, on balance, we conclude that the record in this case shows as

a matter of law that the issue is fairly debatable. Enforcing speed limits

on busy roads is not inherently irrational.     Making unlawful behavior

costly is also not irrational, and there is a fair likelihood that the owner

of the vehicle was either the driver or the driver was a family member of

the owner. It may be that Cedar Rapids and Gatso did not undertake

preimplementation studies that the plaintiffs’ expert would have

preferred, but there is no requirement that the government act in an

optimum manner in order to satisfy substantive due process. Further,

while the continued high number of violations over time at some ATE

locations is interesting, it does not make it irrational or arbitrary to
                                       42

continue to maintain the systems at those locations. After all, without

the ATE system to deter violations, the number of speeders might have

been even higher. We are not engaged in strict scrutiny review; rather,

we are engaged in a careful but deferential review, even if applied with

greater bite than federal precedent.

      We next consider whether the ATE ordinance runs afoul of

substantive due process under a shocks-the-conscience test.       Under

federal precedent following Rochin, 342 U.S. 165, 72 S. Ct. 205, the

shocks-the-conscience test has become extremely difficult to meet. As

noted in United States v. Duvall, the shocks-the-conscience test is

reserved for “the rarest and most outrageous circumstances.” 846 F.2d

966, 973 (5th Cir. 1988) (quoting United States v. Arteaga, 807 F.2d 424,

426 (5th Cir. 1986)). We observed in Blumenthal that in order to meet

the test, government action must be, among other things, “offensive to

human dignity.” 636 N.W.2d at 265 (quoting Rivkin v. Dover Twp. Rent

Leveling Bd., 671 A.2d 567, 575 (N.J. 1996)). Further, we observed that

“the collective conscience of the United States Supreme Court is not

easily shocked.” Id. (quoting Rivkin, 671 A.2d at 575).

      Some states have departed from the narrow federal shocks-the-

conscience precedent in some contexts.       For instance, several state

supreme courts have found that certain types of police misconduct in the

context of entrapment might shock the conscience even if the defendant

was predisposed to commit crime and therefore not entitled to an

entrapment defense. See State v. Glosson, 462 So. 2d 1082, 1085 (Fla.

1985) (involving use of contingent fee for informant testimony); State v.

Hohensee, 650 S.W.2d 268, 268–69, 274 (Mo. Ct. App. 1982) (reversing

conviction based on burglary sponsored and operated by police as

violating due process); People v. Isaacson, 378 N.E.2d 78, 84–85 (N.Y.
                                         43

1978) (holding conviction based on police misconduct and trickery to

secure drug sales violates due process).

      Yet, even if we were to adopt a somewhat less restrictive approach

to the shocks-the-conscience test, we would not apply the doctrine under

the facts presented here. There is no doubt that many citizens regard

ATE systems as “speed traps.”             ATE systems are unforgiving and

nondiscriminatory. The ATE systems deprive citizens of the opportunity

to plead their case to a local police officer who pulls them to the side of

the road, in the hope of obtaining a warning instead of a citation through

the   exercise   of   the   officer’s   discretion.   Further,   ATE   systems

dramatically increase the chances of receiving a citation for a speeding

violation compared to the traditional enforcement technique of chase and

capture. To persons with a penchant to speed, the increased efficiency of

detection is undesirable.       Finally, many see ATE systems with their

combination of cameras and radar as Orwellian invasions of privacy.

The Cedar Rapids ATE system, with its various notices, seeks to

encourage payment of fines rather than to force the City to bring a

municipal infraction in small claims court.

      While we respectfully acknowledge these concerns, this case

involves traffic citations with small fines, not the pumping of a resisting

person’s stomach. See Rochin, 342 U.S. at 166, 72 S. Ct. at 206. There

is no outrageous utilization of physical force; state-sponsored imposition

of uncalled-for embarrassment or ridicule; or intolerable, disreputable,

and underhanded tactics that may arise from government action

deliberately designed to penetrate attorney–client privilege. Cedar Rapids

publicly enacted the ATE ordinance, and the ATE system is no secret.

The City announces the presence of the cameras on the road.               The

invasion of privacy associated with a system based upon rear license
                                          44

plate photographs is minimal. Based on the record in this case, the ATE

system does not shock the conscience for purposes of substantive due

process under the due process clause of article I, section 9 of the Iowa

Constitution.

       It is important to emphasize again that under substantive due

process analysis, the state is given great leeway in achieving its

legitimate goals, particularly those related to public safety.             Mackey v.

Montrym, 443 U.S. 1, 17–19, 99 S. Ct. 2612, 2620–21 (1979).                        The

question before us is not whether Cedar Rapids has made an optimum

policy choice, or whether it could have made a better policy choice, but

whether it has made a permissible policy choice in implementing the ATE

system based on the factual record before us.

       That said, the mere incantation of the abracadabra of public safety

does not end the analysis. It is possible to imagine a scenario in which

the challenger develops a factual record that demonstrates an ATE

system as implemented is so attenuated and remote from public safety

concerns and is simply designed to raise revenues for the city that it

violates rationale basis analysis. 6       But we conclude that the plaintiffs

have not made such a showing in this case.
       D. Equal Protection, Privileges and Immunities Claims.

       1. Introduction.     We now consider the plaintiffs’ equal protection

and privileges and immunities claims under article I, section 6 of the

Iowa Constitution. Here, the focus is not on the rationality of the ATE

system in general, as was the case with the substantive due process


       6The   plaintiffs have not claimed that the ATE system is an illegal tax not
authorized by the legislature. See Brennan, 470 S.W.3d at 384 (Draper, J., concurring);
Ballard, 419 S.W.3d at 122; cf. Homebuilders Ass’n of Greater Des Moines v. City of West
Des Moines, 644 N.W.2d 339, 350 (Iowa 2002) (holding park fees were taxes rather than
regulatory fees). We express no view on this issue.
                                        45

argument, but is instead on the rationality of classifications utilized by

the ATE system.

      We note the ATE ordinance itself does not establish, on its face,

some of the classifications that the plaintiffs challenge. For instance, the

ATE ordinance does not distinguish between privately owned vehicles,

semi-trailer trucks, and government-owned vehicles. These distinctions

arise only in the context of the ordinance’s implementation through the

use of a system and a database that does not permit enforcement of the

ATE system against semi-trailer truck owners or government-owned

vehicles.

      Nonetheless, we think equal protection principles are applicable to

the classifications that arise as a result of the manner of implementation

of the ATE ordinance. When a statute is facially neutral and does not

contain a classification, the plaintiff must prove a classification is used

in practice. If the plaintiff meets that burden, the court proceeds with an

equal protection analysis. Sylvia Dev. Corp. v. Calvert County, 48 F.3d

810, 818–19 (4th Cir. 1995); cf. Hy-Vee Food Stores, Inc. v. Iowa Civil

Rights Comm’n, 453 N.W.2d 512, 516 (Iowa 1990) (distinguishing

between disparate treatment and disparate impact in employment

discrimination case and noting that “[t]he latter involves employment

practices that are facially neutral in their treatment of different groups

but that in fact fall more harshly on one group than another and cannot

be justified by business necessity”).

      2. Positions of the parties. Plaintiffs assert that as implemented,

the ordinance gives rise to three separate classifications that offend Iowa

concepts of equal protection. First, plaintiffs note that unlike ordinary

vehicle owners who are exposed to Cedar Rapids’ ATE system, semi-

trailer truck owners, whose rear license plates are not included in the
                                     46

database used by the ATE system to identify vehicle owners, are not, as a

practical matter, subject to enforcement under the ordinance. Plaintiffs

make a similar as-applied equal protection argument with respect to

government-owned vehicles, whose plate numbers also are not found in

the database used by the ATE system. Finally, the plaintiffs cite the fact

that out-of-state vehicle owners may submit written appeals, while the

same procedure is not extended to in-state vehicle owners, as evidence

the ordinance, as applied, violates equal protection.

      Plaintiffs identify safety as the ATE ordinance’s ostensible purpose,

which provides the context for evaluating the classification. See Gartner

v. Iowa Dep’t of Pub. Health, 830 N.W.2d 335, 350–51 (Iowa 2013).

Plaintiffs proceed to argue that the asserted state interest of safety must

be “realistically conceivable” and must have “a basis in fact.” See RACI

II, 675 N.W.2d at 7–8 (emphasis omitted) (first quoting Miller, 394 N.W.2d

at 779). According to the plaintiffs, the classifications in the ordinance

must be evaluated to determine whether the classifications bear any

relationship to the purpose of the ordinance, namely, promoting public

safety. Plaintiffs suggest that Cedar Rapids is not entitled to deference in

the evaluation of the classifications because the decision to create the

classifications was not made by the Cedar Rapids City Council, but by

Cedar Rapids employees and Gatso in implementing the ordinance.

      Plaintiffs argue that from a safety viewpoint, it is irrational to

exclude semi-trailer trucks and government-owned vehicles from the ATE

system. Plaintiffs claim that semi-trailer trucks and government-owned

vehicles do not pose any less of a safety risk on interstate highways than

vehicles identified in the database used by the City. In the vernacular of

our   caselaw, plaintiffs   assert   that   the   relationship   between   the

classification and safety is “so attenuated as to render the distinction
                                     47

arbitrary or irrational.” RACI II, 675 N.W.2d at 8 (quoting Fitzgerald, 539

U.S. at 107, 123 S. Ct. at 2159). According to plaintiffs, distinguishing

ordinary vehicles from semi-trailer trucks and government-owned

vehicles is as irrational as distinguishing between racetracks and

riverboats in RACI II.

      The plaintiffs also challenge the fact that out-of-state vehicle

owners are allowed to submit written appeals while the same privilege is

not extended to vehicle owners who are Iowa residents.       The plaintiffs

point out that some in-state residents live further from Cedar Rapids

than do some out-of-state residents.

      Cedar Rapids responds by citing federal precedent for the

proposition that we have generally followed federal equal protection

analysis when construing article I, section 6.    See Johnson v. Univ. of

Iowa, 408 F. Supp. 2d 728, 749 (S.D. Iowa 2004) (citing the pre-RACI II

case of In re Det. of Morrow, 616 N.W.2d 544 (Iowa 2000)), aff’d, 431 F.3d

325 (8th Cir. 2005).     Applying the traditional caselaw, Cedar Rapids

asserts that plaintiffs’ arguments fail.

      Cedar Rapids recognizes that an equal protection challenge may be

launched based upon classifications established by the practical

application of a statute or ordinance.        Nonetheless, classifications

created by practical applications still must generally be reviewed by a

court through application of the rational basis test. In the application of

the rational basis test, the City argues we should accept “generalized

reasons to support the legislation, even if the fit between the means and

end is far from perfect.”        Varnum, 763 N.W.2d at 879 n.7.          A

classification or practice is not invalid, Cedar Rapids urges, “because the

classification ‘is not made with mathematical nicety or because in

practice it results in some inequality.’ ” U.S. R.R. Ret. Bd. v. Fritz, 449
                                    48

U.S. 166, 175, 101 S. Ct. 453, 459 (1980) (quoting Dandridge v. Williams,

397 U.S. 471, 485, 90 S. Ct. 1153, 1161 (1970)). Cedar Rapids asserts

that the legislature “may select one phase of one field and apply a

remedy there, neglecting the others.” Hawkeye Commodity Promotions,

Inc. v. Miller, 432 F. Supp. 2d 822, 859 (N.D. Iowa 2006) (quoting

Williamson v. Lee Optical of Okla., Inc., 348 U.S. 483, 489, 75 S. Ct. 461,

465 (1955)).

      Under the above principles, Cedar Rapids argues, the fact that the

ATE system does not capture every vehicle does not make it legally

infirm.   Quoting the federal district court decision in Hughes, Cedar

Rapids argues that it is rational to conclude a system that “only

photographs rear license plates is less expensive and that it is more cost-

effective to capture fewer people who violate the Ordinance with a less

expensive system.”     Hughes, 112 F. Supp. 3d at 842.     The use of the

Nlets database may be the most cost-effective way to enforce the

ordinance. See id. at 842–43. Further, Cedar Rapids asserts that a front

license plate system would be more invasive of privacy as passengers in

the vehicle may be identifiable, as well as more costly, technically more

difficult, largely redundant, and burdensome.

      With respect to the classification in the ordinance allowing out-of-

state recipients to respond by mail rather than appearing in person,

Cedar Rapids argues such a classification is rational. The classification,

according to Cedar Rapids, might not use mathematical niceties, but it is

rational to assume, generally, that the burden of responding to a citation

in person is greater on out-of-state vehicle owners than it is on in-state

vehicle owners.

      3. Discussion.    We first consider the question of whether the

exclusion of government-owned vehicles and semi-trailer trucks from the
                                   49

Nlets database and the resulting inability of the Cedar Rapids ATE

system to cite these vehicles for speeding violate equal protection under

the Iowa Constitution. See RACI II, 675 N.W.2d at 10. Certainly, from a

pure safety viewpoint, there is no reason to think that government-owned

vehicles and semi-trailer trucks are less dangerous than privately owned

vehicles generally, and Cedar Rapids has not made such a claim.

      Cedar Rapids, however, argues that use of the Nlets system is cost-

effective. While other systems might be available, they would be more

expensive, according to Cedar Rapids. The summary judgment record,

however, contains no direct evidence regarding the cost of implementing

a front camera system that captured the license plates of vehicles

hauling semi-trailers.   It might be inferred, perhaps, that the cost of

radar and camera technology capturing front plates should be no

different from the cost of capturing back plates. All that changes is the

direction of the equipment. But the record does not contain any actual

dollar figures comparing the costs of the two systems.

      At the outset, we think that a government may rationally decide to

confront part of a problem rather than the whole problem for reasons of

cost. Providing law enforcement in a cost-effective manner is a legitimate

government interest. Cf. Thomas v. Fellows, 456 N.W.2d 170, 173 (Iowa

1990) (holding statute requiring disclosure of expert witness in medical

malpractice case did not violate plaintiffs’ equal protection rights on

ground that it abridged access to the courts, noting “the problems

surrounding medical liability, liability insurance, and the attendant

availability and cost of medical services to the pubic are . . . rational

reasons for the enactment”); State v. Nat’l Advert. Co., 387 A.2d 745, 750

(Me. 1978) (holding classification scheme adopted by state to keep the

cost of its control of highway advertising to a minimum did not violate
                                     50

equal protection under a rational basis analysis “because all sign owners

affected by the legislation were not treated alike”); Menefee v. Queen City

Metro, 550 N.E.2d 181, 183 (Ohio 1990) (holding statute that prohibited

subrogation claims against political subdivisions by insurers was

rationally related to state’s interest in preserving financial soundness of

subdivision and not violative of equal protection).      But see Graham v.

Richardson, 403 U.S. 365, 374–75, 91 S. Ct. 1848, 1853 (1971) (holding

that while state may legitimately attempt to limit its spending, it cannot

do so by invidious distinction between “person” for equal protection

purposes); Bruns v. Mayhew, 750 F.3d 61, 66 (1st Cir. 2014) (“Though

states traditionally enjoy broad power to regulate economics and social

welfare, even the otherwise ‘valid interest in preserving the fiscal integrity

of [state] programs’ is generally insufficient grounds for a state-imposed

burden on alienage to survive an equal protection challenge.” (quoting

Graham, 403 U.S. at 374, 91 S. Ct. at 1853)). Law enforcement makes

decisions to limit law enforcement all the time based upon resource

limitations.   The fact that a local government has police resources for

road radar at two out of ten locations with comparable speeding

problems and safety concerns does not mean there is an equal protection

problem because not all similar locations in the city have been covered.

      The question is whether Cedar Rapids has shown, as a matter of

law on the summary judgment record, that no reasonable fact finder

could conclude that the City’s purported cost justification was not

“realistically conceivable” and had no “basis in fact.”        RACI II, 675

N.W.2d at 7–8 (emphasis omitted) (first quoting Miller, 394 N.W.2d at

779); see also Residential & Agric. Advisory Comm., LLC v. Dyersville City

Council, 888 N.W.2d 24, 50 (Iowa 2016) (emphasizing that the legitimate

government interest must have a basis in fact).
                                     51

      While the record does not concretely establish the cost of front-

and back-plate systems, it does establish that Cedar Rapids generates

millions of dollars from the back-plate ATE system that prevents

inclusion of semi-trailer trucks. If the City employed front- and back-

plate license technology, one can fairly infer that fines paid by speeding

semi-trailer truck owners would increase revenues by some amount. Is

it realistically conceivable that the cost of front- and back-plate cameras

would exceed the revenues generated by the additional fines paid by

semi-trailer truck owners?

      If the evidence in this case demonstrated that the cost difference

between front- and back-plate and back-plate technology were minimal—

or even nonexistent—Cedar Rapids’ asserted cost justification might be

questioned. Facts matter. But is there enough, on the present record, to

allow a fact finder to conclude that the issue is fairly debatable?

      This court is not comprised of experts on ATE systems. While the

front- and back-plate technology might be available, the record does not

give us any idea what the problems might be in implementing such a

system.   Is it more difficult or more costly to implement a front- and

back-plate system that captures semi-trailer trucks? Is there something

about the size and configuration of semi-trailer trucks that requires more

costly systems? Do the same systems that capture speeding semi-trailer

trucks capture ordinary speeding passenger vehicles? The record does

not tell us in any concrete way what the costs of implementing a front-

plate system would be or what additional revenues would be generated

by the inclusion of semi-trailer trucks in the ATE system. The bottom

line is that, on the present record, we conclude the City’s asserted cost

rationale is realistically conceivable and has a basis in fact.
                                     52

      With respect to the noninclusion of government-owned vehicles, we

also reject the plaintiffs’ equal protection claim. Cedar Rapids notes that

government-owned vehicles are not part of the Nlets database.            The

record in this case, however, does not establish whether there are other

databases that include government-owned vehicles that Cedar Rapids

can access in a cost-effective manner. Here, there are no inferences from

facts in the record that would show that the cost would be insignificant

compared to the revenue generated, and there is no evidence that the

cost rational is not realistically conceivable and supported “in fact.” On

the summary judgment record, Cedar Rapids’ position on the exclusion

of government-owned vehicles is plausible and fairly debatable as a

matter of law. The district court properly granted summary judgment on

this claim.

      We now turn to whether allowing out-of-state vehicle owners to

participate in administrative hearings through written submission while

not extending the same opportunity to in-state vehicle owners violates

equal protection.     We think it does not.   It is rational to allow vehicle

owners that live at great distances from Cedar Rapids to respond by mail

rather than requiring them to appear at a hearing to contest a citation.

See RACI II, 675 N.W.2d at 7. A more exact method might be to allow

written submissions by persons who live a certain number of miles

outside Cedar Rapids, but this could pose substantial administrative

problems determining who lives within the mileage radius. The use of

state residency provides a less complex approach than a mileage

approach. See State v. Mitchell, 757 N.W.2d 431, 436 (Iowa 2008) (noting

that under rational basis review, a classification need not be narrowly

tailored).    It is rational to assume that vehicle owners who live out of

state, in general, live further from Cedar Rapids than Iowa residents.
                                           53
     V. Procedural Challenges Based on Preemption and Procedural
Due Process.

        A. Challenges Based Upon Preemption.

        1. Introduction. Municipalities have home rule authority to enact

legislation “not inconsistent with the laws of the general assembly.” Iowa

Const. art. III, § 38A.      This means that the general assembly has the

power    to    preempt     municipalities       from   enacting   otherwise   lawful

legislation.

        There are two types of preemption. Madden v. City of Iowa City,
848 N.W.2d 40, 49 (Iowa 2014). The legislature may expressly preempt

certain kinds of local legislation. Id. In addition to express preemption,

we have recognized under certain circumstances that the legislature may

impliedly preempt local legislation. Id. Implied preemption occurs when

“an ordinance prohibits an act permitted by statute, or permits an act

prohibited by statute.” Seymour, 755 N.W.2d at 538.

        The standard for concluding that a local ordinance is impliedly

preempted is demanding.           Id. at 539.      In order to conclude that an

ordinance is impliedly preempted, “local law must be ‘irreconcilable’ with

state law.” Id.

        We have already considered whether municipal ATE systems that

impose civil penalties for violation of statewide traffic regulations were

impliedly preempted.        Id. at 537.         We held that the municipal ATE

systems       were   not   impliedly   preempted        because    they   were   not

irreconcilable with state law. Id. at 542–43; cf. Hensler, 790 N.W.2d at

585–86     (holding    city’s   parental    responsibility   ordinance    was    not

impliedly preempted by Iowa’s comprehensive juvenile justice code).

        In Rhoden v. City of Davenport, we considered whether the

Davenport ATE ordinance was inconsistent with Iowa Code section
                                     54

364.22(7).   757 N.W.2d 239, 241 (Iowa 2008).        The court noted that

section provides in relevant part, “All penalties or forfeitures collected by

the court for municipal infractions shall be remitted to the city in the

same manner as fines and forfeitures are remitted for criminal violations

under section 602.8106.” Id. (emphasis in original) (quoting Iowa Code

§ 364.22(6) (2008) (now § 364.22(7) (2018))). In Rhoden, we found that

the procedure for remitting fines in the Davenport ATE ordinance was

not inconsistent with the statute where there was no court involvement

in the process. Id. We noted that Iowa Code section 364.22(6) applied

only to forfeitures “collected by the court.”      Id. (emphasis omitted).

Under the Davenport ordinance, only “payments for unchallenged

violations” which did not involve the court were payable to Davenport’s

finance department rather than to the clerk of the district court as

required when judicial means are employed to collect fines. Id. We held

that the ordinance providing for payments to Davenport’s finance

department was not inconsistent with the procedures required by Iowa

Code section 364.22(6) when fines were “collected by the court.” Id.

      In this case, plaintiffs challenge the ordinance because it allows

the City to enforce civil penalties outside the judicial process for

enforcing “municipal infractions” provided in Iowa Code section 364.22

and the jurisdictional provisions of Iowa Code section 602.6101.

      2. Relevant statutes, ordinances, and notices. Before considering

further plaintiffs’ implied preemption claim, we set out the relevant

statutes and provisions of the ATE ordinance.

      Iowa Code section 602.6101 relates to the jurisdiction of the

district court, which is generally exclusive, subject to certain exceptions.

This provision states, in relevant part,
                                       55
      The district court has exclusive, general, and original
      jurisdiction of all actions, proceedings, and remedies, civil,
      criminal, probate, and juvenile, except in cases where
      exclusive or concurrent jurisdiction is conferred upon some
      other court, tribunal, or administrative body.

Iowa Code § 602.6101 (2015).

      Iowa Code chapter 364 deals with the powers and duties of cities.

Section 364.22 provides a detailed framework for dealing with municipal

infractions. Section 364.22(1)(a) provides that “[a] municipal infraction

is a civil offense punishable by a civil penalty of not more than seven
hundred fifty dollars for each violation” unless the infraction is a repeat

offense. For repeat offenses, the penalty may not exceed one thousand

dollars. Id.

      Under section 364.22(2), a city “may provide that a violation of an

ordinance is a municipal infraction.”           Section 364.22(4) states an

authorized officer of the city “may issue a civil citation to a person who

commits a municipal infraction.”            A civil citation for a municipal

infraction must include, among other things, “[t]he time and place of

court appearance” and “[t]he penalty for failure to appear in court.” Id.

§ 364.22(4)(f), (g).   Iowa Code section 364.22(4) further provides that

service of the civil citation may be made

      by personal service as provided in rule of civil procedure
      1.305, by certified mail addressed to the defendant at the
      defendant’s last known mailing address, return receipt
      requested, or by publication in the manner provided by the
      rule[s] of civil procedure.

Id. § 364.22(4).

      Iowa     Code    section   364.22(6)(a)   provides   that   in   municipal

infraction proceedings “[t]he matter shall be tried before a magistrate, a

district associate judge, or a district judge in the same manner as a small

claim.” At a trial on a municipal infraction, “[t]he city has the burden of
                                       56

proof that a municipal infraction occurred and that the defendant

committed the infraction.” Id. § 364.22(6)(b). The city’s burden of proof

is “by clear, satisfactory, and convincing evidence.” Id. A defendant in a

municipal infraction proceeding is entitled to “be represented by counsel

of the defendant’s own selection and at the defendant’s own expense.”

Id. § 364.22(6)(d). Only when a judgment has been entered against the

defendant may the court “[i]mpose a civil penalty by entry of a personal

judgment against the defendant.” Id. § 364.22(10)(a)(1). The court may

also “[d]irect that payment of the civil penalty be suspended or deferred

under    conditions imposed       by   the court” or   “[g]rant appropriate

alternative relief ordering the defendant to abate or cease the violation.”

Id. § 364.22(10)(a)(2), (3).

        The City’s ATE ordinance does not directly characterize a notice of

violation arising from the ATE system as a “municipal infraction,” but

simply declares that a vehicle owner is liable for “[c]ertain [t]raffic

[o]ffenses” as provided in the ordinance. Cedar Rapids, Iowa, Mun. Code

§ 61.138(c). For such “traffic offenses,” including those based on speed,

the ordinance establishes a schedule of “civil fines” ranging from $25 to

$750 per violation. Id. § 61.138(d)(3). The maximum “civil fine” is the

same as the maximum “civil penalty” authorized by Iowa Code section

364.22(1)(a)    for   municipal   infractions.   Further,   the   ordinance

specifically states that the fines imposed are “subject in any event to the

limit on fines sought in municipal infractions.” Id. § 61.138(d)(3).

        The process for imposing liability under the ordinance is different

from that under Iowa Code section 364.22.        Under the ordinance, the

notice of violation is sent by first class mail to the vehicle owner for each

recorded violation, not served personally, sent by certified mail, or served

by publication as under Iowa Code section 364.22(4). Id. § 61.138(d)(1).
                                    57

Like Iowa Code section 364.22, the ordinance provides a laundry list of

what must be included in the notice. Compare Iowa Code § 364.22(4),

with Cedar Rapids, Iowa, Mun. Code § 61.138(d)(1).       The laundry list

under the ordinance, however, does not include the right to be

represented by counsel or the right to notice about court appearances

and penalties imposed by the court as in Iowa Code section 364.22.

      The ATE ordinance provides procedures for contesting a citation in

two lengthy paragraphs that are at variance with Iowa Code section

364.22. See Cedar Rapids, Iowa, Mun. Code § 61.138(e). According to

the ordinance, a vehicle owner who has received a notice of violation may

contest it in two ways. Id. The first path is by seeking a hearing before

an administrative appeals board, a process not provided in Iowa Code

section 364.22. Compare Iowa Code § 364.22, with Cedar Rapids, Iowa,

Mun. Code § 61.138(e)(1).    Specifically, the ordinance provides that a

vehicle owner may contest a citation

      [b]y submitting in a form specified by the City a request for
      an administrative hearing to be held at the Cedar Rapids
      Police Department before an administrative appeals board
      (the “Board”) consisting of one or more impartial fact finders.
      Such a request must be filed within 30 days from the date
      on which Notice of the violation is sent to the Vehicle Owner.
      After a hearing, the Board may either uphold or dismiss the
      Automated Traffic Citation, and shall mail its written
      decision within 10 days after the hearing to the address
      provided on the request for hearing. If the citation is upheld,
      then the Board shall include in its written decision a date by
      which the fine must be paid, and on or before that date, the
      Vehicle Owner shall either pay the fine or submit a request
      pursuant to the next paragraph . . . .

Cedar Rapids, Iowa, Mun. Code § 61.138(e)(1).

      The second path for contesting an ATE citation is through

submitting a request that Cedar Rapids issue a municipal infraction

citation and proceed with enforcement of the municipal infraction in
                                      58

small claims court.      Id. § 61.138(e)(2).    Specifically, the ordinance

provides that a vehicle owner may challenge an ATE citation

      [b]y submitting in a form specified by the City a request that
      in lieu of the Automated Traffic Citation, a municipal
      infraction citation be issued and filed with the Small Claims
      Division of the Iowa District Court in Linn County. Such a
      request must be filed within 30 days from the date on which
      Notice of the violation is sent to the Vehicle Owner.

Id. § 61.138(e)(2).

      Finally, the ordinance has a provision related to the failure of a

vehicle owner to timely pay or appeal.       Id. § 61.138(g).   Under section

61.138(g), if a recipient of a traffic citation does not “pay the fine by the

due date stated on the original citation or contest the citation” through

either seeking an administrative hearing or requesting the filing of a

municipal infraction, “then the recipient shall be deemed to have waived

all rights to contest the citation” and “shall be liable for any fine imposed

herein plus a late penalty of 25% of the fine imposed for failure to timely

pay or appeal the citation.” Id.

      In other words, under the ordinance, a recipient who does nothing

upon receipt of a citation is declared “liable” and the sums due “shall

constitute a debt due and owing to the City of Cedar Rapids.”               Id.

Similarly, a vehicle owner is “deemed” to have waived all rights to contest

the citation if the owner pursues the administrative remedy provided by

the ordinance but does not timely request that the City file a municipal

infraction after an adverse result at the administrative hearing. Id.

      Thus, unlike Iowa Code section 364.22, a vehicle owner who does

nothing is declared liable under the ordinance. Under Iowa Code section

364.22, no liability arises until the city takes the affirmative step of filing

an enforcement action in district court and obtains a judgment against

the defendant. See Iowa Code § 364.22(4), (5)(b), (6)(f), (10)(a) (imposing
                                     59

a duty on the city to file the citation with the district court and the

county treasurer’s office).    Iowa Code section 364.22 does provide for

entry of judgment upon default of the defendant, but only if the court

determines that defendant has been served pursuant to Iowa Code

section 364.22(4) and the defendant’s failure to respond was without

good cause. Id. § 364.22(7).

      3. Positions of the parties.    The plaintiffs make three separate

arguments asserting that state law preempts the ATE system.

      First, the plaintiffs facially attack the ordinance as conflicting with

several provisions of state law. The plaintiffs point out that under Iowa

Code section 364.22(6)(a), municipal infractions must be tried before a

magistrate, a district associate judge, or a district court judge “in the

same manner as a small claim.”         The plaintiffs argue that the ATE

ordinance, which provides the right to contest the violation at an

administrative hearing, is inconsistent with the legislative mandate that

municipal infractions must be tried as a small claim. Further, plaintiffs

argue the administrative hearing process established in the ATE

ordinance is inconsistent with the legislature’s directive that district

courts have “exclusive, general, and original jurisdiction of all actions.”

Id. § 602.6101. The plaintiffs argue that these statutes demonstrate that

the ATE ordinance permits what the legislature has prohibited.

      Plaintiffs attack the administrative process established by the

ordinance. Plaintiffs note that Iowa Code section 364.22(6)(b) requires

Cedar Rapids bear the burden of proving a municipal infraction by “clear,

satisfactory, and convincing evidence.” Yet, the administrative hearing

officers in this case appear to have rendered decisions on the issues

based upon a preponderance of the evidence.
                                      60

       As part of their challenge to the administrative process established

by the ordinance, the plaintiffs point to three provisions of Iowa Code

section 364.22(4) related to municipal infractions. First, plaintiffs note

that this provision provides that “[a]n officer authorized by a city” may

issue a municipal infraction citation. Id. Further, the section states that

service of the municipal infraction may be made by personal service,

certified mail with return receipt requested, or by publication.              Id.

Finally, the section requires that a copy of the citation “shall be retained”

by the issuing officer and the original citation sent to the clerk of court.

Id.   The plaintiffs point out that the ATE ordinance allows Gatso, a

private entity, to issue the citation; that service is allowed by ordinary

mail; and that a copy of the citation is not filed with the district court.

       Additionally, plaintiffs argue the IDOT evaluation and order

preempted the citations issued after March 2015 in this case. According

to the plaintiffs, Cedar Rapids’ continued use of the radar and cameras

after the issuance of the order is patently inconsistent and irreconcilable

with the agency’s decision. As a result, the plaintiffs argue that Cedar

Rapids’ conduct is preempted.

       Finally, the plaintiffs argue the ATE system’s failure to capture

government-owned vehicles creates a preemption problem.              Iowa Code

section 321.230 expressly states that the provisions of the chapter on

traffic laws, including speeding regulations, apply to the drivers of all

government vehicles.      Thus, Plaintiffs claim the operation of the ATE

system,   which    does    not   capture    government-owned     vehicles,     is

preempted.

       Cedar   Rapids     responds   by    emphasizing   that   in   order    for

preemption to apply, the conflict between the statute and the local

ordinance must be irreconcilable.         See Seymour, 755 N.W.2d at 539.
                                         61

Cedar Rapids stresses that the ordinance’s administrative hearing

procedure is not irreconcilable with the cited statutory provisions

because the ATE ordinance allows the recipient to contest the violations

in small claims court either instead of or in addition to the administrative

hearing. The essence of Cedar Rapids’ argument is that there is nothing

wrong with adding an additional layer of process as long as a vehicle

owner retains the right to compel Cedar Rapids to file a municipal

infraction citation in district court.

      At most, according to Cedar Rapids, the administrative board

established by the ATE ordinance has concurrent jurisdiction with the

district court. Cedar Rapids points out that Iowa Code section 602.6101

expressly provides an exception to the exclusive jurisdiction of district

courts when another tribunal has concurrent jurisdiction.

      Cedar Rapids further denies that a city officer does not issue the

ATE citations.    Cedar Rapids points out that an officer approves each

citation before it is issued and the officer’s electronic signature is

attached to the bottom of each citation.

      4. Discussion.     We first consider whether the ordinance, on its

face, is preempted by various provisions of the Iowa Code related to

municipal infractions and district court jurisdiction.      In determining

whether the ordinance is preempted, we must determine whether the

ordinance is “irreconcilable” with the terms of the statutes cited by the

plaintiffs. See id.

      The first question is whether the terms of the ordinance create a

“municipal infraction” under Iowa Code section 364.22.         The statute

defines “municipal infraction” as “[a] civil offense punishable by a civil

penalty of not more than seven hundred fifty dollars for each violation”

unless the infraction is for a repeat offense. Iowa Code § 364.22(1)(a).
                                       62

      Consistent with the definition of “municipal infraction” in the

statute, the ordinance establishes a “civil fine” up to $750 per violation.

Cedar Rapids, Iowa, Mun. Code § 61.138(d)(3). Further, the ordinance

itself recognizes that the amount of “civil fine” under the ordinance is

“subject . . . to the limit on fines sought in municipal infractions.” Id.

      We thus think it clear that an ordinance violation where a civil fine

is sought is a “municipal infraction” under the statute. A city cannot

avoid Iowa Code section 364.22 by simply declaring that an effort to

impose a civil penalty for an ordinance violation is not really a municipal

infraction.   Cf. City of Vinton v. Engledow, 258 Iowa 861, 866, 140

N.W.2d 857, 861 (1966) (invalidating a municipal ordinance that

attempted to redefine “reckless driving,” a term already defined by state

statute).

      Having concluded that a violation of the ordinance resulting in a

“civil fine” is a “municipal infraction” under Iowa Code section

364.22(1)(a), the next question is whether the ordinance complies with

the requirements imposed by the statute.

      Iowa Code section 364.22 provides procedural and substantive

protections for those charged with municipal infractions.        In order to

commence a municipal infraction proceeding, an officer of the city may

issue a citation to the defendant. Iowa Code § 364.22(4). The citation,

which “serve[s] as notification that a civil offense has been committed,” is

required to contain certain information, including “[t]he time and place of

court appearance,” and “[t]he penalty for failure to appear in court. Id.

§ 364.22(4)(f)–(g) (emphasis added).

      The statute directs such enforcement actions be tried in the

district court “in the same manner as a small claim.” Id. § 364.22(6)(a).

This statutory provision assures a defendant of the right to present
                                     63

evidence and to contest violations before a neutral magistrate.          Id.

§ 364.22(6)(c).   In order to assure that the defendant can effectively

defend against alleged municipal infractions, the statute provides a right

to representation by counsel at the defendant’s expense in a proceeding

involving a municipal infraction. Id. § 364.22(6)(d).

      In a municipal infraction proceeding, the city bears the burden of

proof “by clear, satisfactory, and convincing evidence.” Id. § 364.22(6)(b).

After a judgment is entered against the defendant, the court may

“[i]mpose a civil money penalty by the entry of a personal judgment

against the defendant.”      Id. § 364.22(10)(a)(1).    The court is also

authorized to suspend or defer payment or “[g]rant appropriate alternate

relief ordering the defendant to abate or cease the violation.”          Id.

§ 364.22(10)(a)(2), (3).

      These procedural and substantive rules are plainly designed to

establish the ground rules that a city must follow in seeking to enforce

an ordinance through the imposition of civil monetary penalties. They

are a legislative response to the adage, “You cannot fight city hall.”

      We think it plain that the requirements of Iowa Code section

364.22 apply to any effort by a city to enforce a civil penalty arising from

a municipal infraction when a defendant denies liability.       When a city

seeks to enforce a municipal ordinance through imposition of a civil

penalty in the face of a protesting citizen, there can be no “shortcut

around the judicial system and its protection for the rights of the

accused.” Brennan, 470 S.W.3d at 382; see Belt, 307 S.W.3d at 652–53.

But see Walker, 39 N.E.3d at 474.

      That said, we also think it clear that voluntary informal means of

attempting to resolve disputes regarding municipal infractions prior to

the filing of a municipal infraction proceeding is permitted. That is the
                                     64

teaching of Rhoden, 757 N.W.2d 239.          In Rhoden, we held that the

provision in Iowa Code section 364.22 regarding the distribution of

monies collected in municipal infractions applied only where the

penalties were “collected by the court.”     Id. at 241.   If the city and a

citizen wish to negotiate a settlement short of the filing of a municipal

infraction, they may do so without violating Iowa Code section 364.22(7).

      Under these principles, we find two problems emerge with respect

to the ordinance. First, it provides that a person who does not respond

to a notice of citation served by first-class mail pursuant to the ordinance

“waives all defenses” and is liable the civil fine under the ordinance.

Second, the ordinance purports to impose liability if a person who has

proceeded through the administrative process fails to timely request that

the City file a municipal infraction. Id. But, as seen above, liability for a

municipal infraction can only be determined through the municipal

infraction process and upon the entry of a judgment by the court. See

Iowa Code § 364.22(4), (5)(b) (requiring city to file municipal infraction

citations with the district court and with the county treasurer’s office); id.

§ 364.22(10)(a)(1) (civil penalty may be imposed by court after entry of

judgment).

      The statute does provide for a default mechanism if the defendant

fails to respond. See id. § 364.22(7). But the default provision kicks in

only when the court determines that a person has been served as

provided in Iowa Code section 364.22(4) (providing for service of a notice

by personal service, certified mail, or publication and requiring that the

notice, among other things, clearly indicate the time and place of a court

appearance and the penalty for failure to appear in court) and the court

further determines that the failure to respond was without good cause.
                                    65

Id. § 364.22(7). If these requirements are met, the statute provides that

the court shall enter judgment against the defendant. Id.

      Under the statute, it is clear that any liability that might arise from

the failure of a defendant to respond to a municipal infraction is subject

to judicial supervision under the standards elaborated in Iowa Code

section 364.22. Such liability does not arise automatically as a result of

a failure of a defendant to meet the procedural requirements of a local

ordinance.

      We conclude the provisions of the ordinance that purportedly

impose liability on a protesting vehicle owner who does not respond to a

notice of violation or who does not timely file a request with the City to

institute a municipal infraction proceeding at the conclusion of the

administrative process are irreconcilable with the provisions of Iowa Code

section 364.22. Upholding these provisions of the ordinance would be

tantamount to choosing the City’s enactment over the legislature’s

enactment, contrary to Seymour, 755 N.W.2d at 541. If the City wishes

to enforce liability under its ordinance upon a vehicle owner who does

not voluntarily agree to pay, it must institute a municipal infraction

action under Iowa Code section 364.22. As a result, we conclude that

the district court erred in granting summary judgment to the defendant

on the question of whether Iowa Code section 364.22 preempted the

ordinance.

      The plaintiffs’ second preemption challenge arises out of their

argument that the ATE program is irreconcilable with the rules

established by the IDOT related to ATE systems. Because we have ruled

that the IDOT rules are invalid in City of Des Moines, 911 N.W.2d at 434,

the plaintiffs’ second preemption claim is without merit.
                                        66

         The plaintiffs’ final preemption claim relates to the fact that

government-owned vehicles are not included in the Nlets database and

therefore are not subject to ATE enforcement. The plaintiffs claim that

this reality is irreconcilable with Iowa Code section 321.230. We do not

agree.      Cedar Rapids has not enacted a statute or rule that is

inconsistent with the notion that government-owned vehicles are

generally subject to the rules of the road.     Instead, Cedar Rapids had

implemented an ATE program that does not capture government-owned

vehicles that may be speeding. That does not mean that the law does not

apply to government-owned vehicles, but only that government-owned

vehicles may evade a method of detection.        We do not see a clash of

irreconcilable legal provisions here.

         B. Procedural Due Process.

         1. Introduction. In addition to substantive due process, plaintiffs

launch a series of claims based on notions of procedural due process

under the Iowa Constitution, article I, section 9. The plaintiffs have not

suggested that we should follow different substantive standards under

the Iowa Constitution than would be applied to procedural due process

claims under the Federal Constitution.         As a result, we apply the

substantive federal standards, reserving the right to apply these

standards in a more stringent fashion than under federal caselaw. See

State v. Kooima, 833 N.W.2d 202, 206 (Iowa 2013); RACI II, 675 N.W.2d

at 5–7.

         A party claiming a violation of procedural due process must first

show an impairment of an interest in life, liberty, or property by

government action.       State v. Russell, 897 N.W.2d 717, 732–33 (Iowa

2017); State v. Seering, 701 N.W.2d 655, 665 (Iowa 2005).           Once a

protected interest has been established, the next question is what
                                         67

procedural minima must be provided before the government may deprive

the complaining party of the protected interest. In re C.M., 652 N.W.2d

204, 212 (Iowa 2002); Bowers v. Polk Cty. Bd. of Supervisors, 638 N.W.2d

682, 691 (Iowa 2002).        Ordinarily, the procedural minima include two

components—notice and an opportunity to be heard on the issue.

Bowers, 638 N.W.2d at 690–91.

       In considering procedural due process claims, it is important to

distinguish civil from criminal cases. See Shavitz, 270 F. Supp. 2d at

712. The due process standards for criminal cases are more stringent.

See Comm. on Prof’l Ethics & Conduct v. Durham, 279 N.W.2d 280, 284

(Iowa 1979). Here, the plaintiffs make no claim that the ATE ordinance

is criminal in nature. We therefore evaluate the ATE ordinance under

the procedural due process standard for civil matters.

       2. Positions of the parties. At the outset, plaintiffs seek to merge

their preemption argument with procedural due process. 7 With respect

to their due process argument, the Plaintiffs assert that because the

remedies under the ATE ordinance are inconsistent with the procedural

requirements related to municipal infractions provided in Iowa Code

section 364.22(6), a violation of due process is present.
       According to plaintiffs, the procedures outlined in Iowa Code

section 364.22 provide “the legislative measure” of due process

protection. Plaintiffs thus assert there is no need to engage in further

substantive     analysis    of   the   constitutionally    required    notice    and

opportunity to be heard because the legislature has provided it for us.

       7Procedural   due process consists of two elements: (1) notice and (2) an
opportunity to be heard. Lewis v. Jaeger, 818 N.W.2d 165, 181 (Iowa 2012). The
plaintiffs attack the opportunity-to-be-heard prong of due process, but they do not
attack the notice prong. We thus do not consider whether alleged misrepresentations in
the various notices sent out by the City as part of the ATE program violate the notice
requirements of procedural due process.
                                     68

      The plaintiffs next attack the opportunity to be heard provided by

Cedar Rapids. The plaintiffs assert that the process provided by the City

does not meet procedural due process requirements under the balancing

test announced by the United States Supreme Court in Mathews, 424

U.S. at 335, 96 S. Ct. at 903. Under the familiar tripartite Mathews test,

the court considers (1) the nature of the interest involved; (2) “the risk of

an erroneous deprivation of such interests through the procedures used”;

and (3) “the [g]overnment’s interest, including the function involved, and

the fiscal and administrative burdens that the additional or substitute

procedural requirements would entail.” Id.

      Plaintiffs argue that they have a property interest in “not being

subject to irrational monetary fines.”     Jacobsma, 862 N.W.2d at 345.

Their property interest is heightened, according to plaintiffs, by the time

lost in the administrative process and by the possibility of being subject

to collection procedures, including reporting to a credit-reporting agency

and a civil lawsuit.

      With respect to the erroneous deprivation prong of the Mathews

test, plaintiffs highlight that Gatso employees, not police officers, make

the initial determination of who is subject to enforcement using

unidentified standards. In addition, the notice of violation sent to vehicle

owners threatens collection actions for unpaid civil fines, which plaintiffs

assert seeks to deter vehicle owners from asserting their right to contest

the citation. Finally, plaintiffs note that at the administrative hearings,

no evidence is produced related to the calibration of the Gatso

equipment;    the   hearing   officers   use   a   preponderance-of-evidence

standard rather than a clear, satisfactory, and convincing standard

required by Iowa Code section 364.22; and no meaningful opportunity to

present evidence is provided.
                                           69

       On the governmental interest prong of the Mathews test, plaintiffs

characterize the government’s interest as not significant. Plaintiffs cite

the IDOT findings, claiming there was no support for the placement of

the ATE equipment at two locations and with respect to the other two

locations, the ATE systems were outside the perceived point of danger

along I-380. Plaintiffs argue that the costs of following the legislature’s

processes for municipal infractions cannot be considered unduly

burdensome       and     cannot     be    used    to    deprive    the    plaintiffs   of

constitutionally required due process.

       These defects, according to the plaintiffs, are not cured by later

providing adequate legal process. The plaintiffs cite Ward v. Village of

Monroeville, 409 U.S. 57, 93 S. Ct. 80 (1972). In Ward, the United States

Supreme Court noted that “the State’s trial court procedure [could not]

be   deemed      constitutionally     acceptable       simply     because    the   State

eventually offers a defendant an impartial adjudication.” 8 Id. at 61, 93

S. Ct. at 84.

       Cedar Rapids asserts that the notice of violation used by the ATE

system does not amount to a notice of a municipal infraction. In effect,

Cedar Rapids argues that an ATE citation only ripens into a municipal
infraction when the vehicle owner requests the City to file a municipal

       8In  their appellate brief, Plaintiffs raise two additional due process arguments.
First, plaintiffs assert that the administrative hearing officers provided by Cedar Rapids
are not impartial. Fact-bound challenges to the impartiality of hearing officers in ATE
systems have been made in a number of cases. See, e.g., Bevis, 686 F.3d at 281 & n.2
(finding that hearing officer employed by municipal executive alone does not offend due
process); Gardner, 656 F. Supp. 2d at 762 (noting plaintiff submitted no evidence of
actual bias or prejudgment); Shavitz, 270 F. Supp. 2d at 720 (finding no evidence of
partiality sufficient to override “presumption of honesty and integrity” (quoting Withrow
v. Larkin, 421 U.S. 35, 47, 95 S. Ct. 1456, 1464 (1975))). Second, plaintiffs argue that
the enforcement of Cedar Rapids’ ordinance relies upon an “irrebuttable presumption”
that the vehicle owner is responsible for the infraction. Because the district court did
not rule upon either of these issues, they are waived on appeal. Meier v. Senecaut, 641
N.W.2d 532, 541 (Iowa 2002).
                                      70

infraction in small claims court. As a result, the administrative process

is not contrary to Iowa Code section 364.22.

      Cedar Rapids agrees with the plaintiffs that the proper test for

determining a procedural due process violation is the Mathews test.

Cedar Rapids does not dispute that plaintiffs have a property interest in

avoiding a fine, but that interest, according to the City, is not particularly

strong when the fine is $75. See Hughes, 112 F. Supp. 3d at 846.

      On the risk-of-erroneous-deprivation prong of the Mathews test,

Cedar Rapids asserts that the plaintiffs overlook the fact that use of the

administrative process is optional and not mandatory.            According to

Cedar Rapids, the plain language of the ordinance makes clear the

optional nature of the administrative process. See Cedar Rapids, Iowa,

Mun. Code § 61.138(e)(1)–(2).

      In any event, Cedar Rapids argues that the administrative process

provides due process. Cedar Rapids challenges the plaintiffs’ assertion

that Gatso makes the initial determination of whether to issue a citation,

noting that under the ordinance a police officer makes the initial

decision. See id. § 61.138(a). Cedar Rapids further asserts that the fact

that Gatso filters out a substantial number of events for enforcement due

to difficulties in reading the license plate, the lack of vehicle identification

from the Nlets database search, or the presence of an emergency vehicle

with lights on, does not create a risk of erroneous deprivation for those

events actually forwarded to Cedar Rapids law enforcement for

evaluation.

      Cedar Rapids concedes that the administrative hearings are

informal, but emphasizes that due to the availability of a small claims

court action an individual is no worse off as a result of participating in

such a hearing.     In any event, Cedar Rapids asserts that there is a
                                          71

governmental interest in out-of-court resolution of traffic charges. See

City of Des Moines v. Iowa Dist. Ct., 431 N.W.2d 764, 767 (Iowa 1988).

       3. Discussion. We begin with a brief discussion of the interplay

between Iowa Code section 364.22 and due process. A mere violation of

a statute does not give rise to a due process violation as the statute may

provide more process than is constitutionally required.                    Sevin, 621

F. Supp. 2d at 387.        Thus, violation of Iowa Code section 364.22 may

give rise to a claim of a statutory violation, but it does not automatically

translate into a claim of a constitutional violation. We therefore reject

plaintiff’s first contention that violation of the statute ends the

procedural due process constitutional analysis. 9

       The question of whether the process outlined in the ATE ordinance

complies with due process under Mathews really raises two questions.

First, does the process in the ATE ordinance satisfy due process?

Second, does the ATE ordinance as actually implemented, with the notice

provided in the Notice of Violation and other documents, violate due

process?

       On the question of whether the ATE ordinance on its face satisfies

due process, we think it generally does. The ATE ordinance provides for
an administrative hearing, but further provides that in lieu of an

administrative hearing, a vehicle owner may request the City issue a

municipal infraction and the vehicle owner receive a hearing in small

claims court.      See Cedar Rapids, Iowa, Mun. Code § 61.138(e)(1)–(2).


       9Nothing   in Ghost Player, L.L.C. v. State, 880 N.W.2d 323 (Iowa 2015), is to the
contrary. In Ghost Player, the court recognized that if the legislature established a
higher standard than required by constitutional notions of due process, a party was
entitled to receive the higher legislative standard. Id. at 330 (observing that the
“legislature did not mandate a contested hearing process to review and award the tax
credits”). Such a party is entitled to the more elaborate process not because of
application of procedural due process, but because of the terms of the statute itself.
                                     72

There is no question that a hearing in small claims court satisfied due

process on the question of a minor traffic fine.      The procedural due

process claim cannot focus on only a part of the process afforded under

the ordinance but must consider the entire panoply of available

procedures. See Nichols ex rel. Nichols v. DeStefano, 70 P.3d 505, 507

(Colo. App. 2002), aff’d, 84 P.3d 496 (Colo. 2004) (en banc) (per curiam);

Broadway & 67th St. Corp. v. City of New York, 475 N.Y.S.2d 1, 5 (App.

Div. 1984).

         There is, however, at least one complication. The ATE ordinance

puts the burden on a vehicle owner to request a hearing in small claims

court.     See Cedar Rapids, Iowa, Mun. Code § 61.138 (e)(2).         Is a

requirement that a citizen take affirmative action to obtain a hearing

before a small claims court consistent with due process? We think it is.

The amount at stake is relatively small, see Sevin, 621 F. Supp. 2d at

386, and the burden of requesting a hearing is not heavy. Further, the

ordinances provide a vehicle owner with the opportunity for a prior

administrative hearing to challenge the automated traffic citation in an

informal proceeding.        We do not think this combination of an

administrative hearing, with the option of a small claims hearing, violates

Mathews.

         VI. Unlawful Delegation Claims.

         A. Overview   of   Plaintiffs’   Unlawful   Delegation   Claims.

Plaintiffs argue that the ATE system improperly delegates governmental

authority to Gatso, a private entity. They claim that Gatso makes the

discretionary decision of which vehicle owners should be considered by

Cedar Rapids to receive potential citations. See Arem, 154 So. 3d at 365.

The plaintiffs assert that Gatso rejects up to forty percent of the images

they receive under standards that are entirely nontransparent to the
                                       73

outside and not addressed in the ATE ordinance.                  The plaintiffs

characterize review of potential violations by police officers as a “cursory”

review.

      Plaintiffs further assert that Cedar Rapids delegates police powers

to Gatso by authorizing the corporation to access the Nlets database to

run license plate checks on behalf of Cedar Rapids.           According to the

plaintiffs, Nlets was created to serve the law enforcement community, not

private entities like Gatso.

      Plaintiffs next suggest that Gatso has determined that only those

vehicles detected as traveling eleven miles per hour or more over the

speed limit by Gatso equipment should be issued citations.             Plaintiffs

further claim that enforcement of this rule by Gatso requires “judgment

and discretion.”

      Plaintiffs additionally attack the delegation of communications

functions from Cedar Rapids to Gatso. Gatso provides a hotline number

on each notice of violation that it issues.         Gatso further operates a

website for the City that provides information related to the ordinance as

well as a payment portal. In order to contest a citation, a vehicle owner

has to send the document to Gatso’s location in Beverly, Massachusetts.

      Finally, the plaintiffs attack the delegation of police powers to

hearing officers who are simply volunteers. According to the plaintiffs,

delegation of quasi-judicial functions is proscribed. See Bunger v. Iowa

High Sch. Athletic Ass’n, 197 N.W.2d 555, 560 (Iowa 1972). 10

      Cedar Rapids responds by emphasizing that the activities of Gatso

are ministerial and not discretionary.          For example, Cedar Rapids


      10Plaintiffs  also claimed that the IDOT rules and the IDOT order preempted
Cedar Rapids from engaging in its ATE program. Because we have found the IDOT
rules invalid, that claim is moot. See City of Des Moines, 911 N.W.2d at 434.
                                     74

stresses that Cedar Rapids law enforcement officers make the final

determination regarding who is issued traffic citations.         According to

Cedar Rapids, Gatso does not forward to the City images when the

license plates are not visible, when the captured image is an emergency

vehicle with lights on, and when the Nlets database search failed to

identify a vehicle owner. As a result, the screening process involves little

discretion or judgement.

      With respect to the use of the Nlets database by Gatso, Cedar

Rapids points out that the only use of the database by Gatso is to match

license plates with registered vehicle owners. Such matching, according

to Cedar Rapids, does not involve a discretionary decision.

      Cedar Rapids maintains that there is nothing in the record to

support plaintiffs’ claim that Gatso determined that only vehicle speeds

recorded as eleven miles per hour over the speed limit should be issued

citations. In any event, Cedar Rapids maintains there would be nothing

wrong with it implementing such a policy.

      Regarding the calibration of equipment, Cedar Rapids argues that

the record shows the Cedar Rapids police department does test the

calibration at least quarterly. In any event, Cedar Rapids asserts that

the act of calibrating equipment is ministerial in nature.

      Finally, with respect to the alleged delegation of power to volunteer

hearing officers, Cedar Rapids asserts that volunteer hearing officers

make no determination about whether to issue a notice of violation. And,

when the hearing officer finds in Cedar Rapids’ favor, the decision is

subject to district court review in the form of a municipal infraction.

      B. Overview      of   Unlawful      Delegation   Claims.       Political

accountability is at the very heart of democratic government.               If

democracy is to function, it is essential that public decision-making be
                                    75

transparent and that the public may hold officials responsible for their

actions. As a result, it is essential that governmental functions, in fact,

be executed by public officials and not an insulated private entity

undisciplined by ordinary political restraints.   See Warren Cty. Bd. of

Health v. Warren Cty. Bd. of Supervisors, 654 N.W.2d 910, 913–14 (Iowa

2002) (“[A] governmental subdivision cannot delegate the right to make

decisions it has been empowered to make.”).       The unlawful delegation

doctrine “expresses the fundamental concept that we are to be governed

by our duly elected representatives.”    Sedlak v. Dick, 887 P.2d 1119,

1135 (Kan. 1995).

      While the general nondelegation principles are clearly stated, the

law of unlawful delegation has been criticized as unprincipled. David M.

Lawrence, Private Exercise of Governmental Power, 61 Ind. L.J. 647, 694

(1986) [hereinafter Lawrence].    There is simply no consensus on the

proper approach to the question of unlawful delegation. See James M.

Rice, Note, The Private Nondelegation Doctrine: Preventing the Delegation

of Regulatory Authority to Private Parties and International Organizations,

105 Calif. L. Rev. 539, 557 (2017) [hereinafter Rice] (noting “no

consensus on a model for defining the activities that the government

must perform”).

      But there are a couple principles that emerge from the caselaw.

First, it seems apparent to many observers that at least some state

courts have been more willing to closely scrutinize unlawful delegations

than federal courts.   See Tex. Boll Weevil Eradication Found., Inc. v.

Lewellen, 952 S.W.2d 454, 468 (Tex. 1997) (noting that while federal

courts have generally been reluctant to use the nondelegation doctrine to

invalidate laws, state courts have not been so chary); Gary J. Greco,

Survey, Standards or Safeguards: A Survey of the Delegation Doctrine in
                                    76

the States, 8 Admin. L.J. Am. U. 567, 578 (1994) [hereinafter Greco]

(stating that “the state courts have upheld broad delegations more

reluctantly” than federal courts); Lawrence, 61 Ind. L.J. at 649 (“Private

exercise of federally delegated power is no longer a federal constitutional

issue.”).

      Second, while many of the cases and authorities deal with

delegation of statutory power to administrative agencies, see, e.g., Greco,

8 Admin. L.J. Am. U. at 568; Lawrence, 61 Ind. L.J. at 664, a number of

authorities distinguish between delegation of statutory authority to an

administrative agency and delegation of authority to a private party, see

Rice, 105 Calif. L. Rev. at 545. As noted many years ago by the United

States Supreme Court in Carter v. Carter Coal Co., handing off regulatory

power to a private entity is “legislative delegation in its most obnoxious

form.” 298 U.S. 238, 311, 56 S. Ct. 855, 873 (1936). And as recently

noted by Justice Alito, “Liberty requires accountability. . . . Government

officials can wield power without owning up to the consequences. One

way the Government can regulate without accountability is by passing off

a Government operation as an independent private concern.”        Dep’t of

Transp. v. Ass’n of Am. R.Rs., 575 U.S. ___, ___, 135 S. Ct. 1225, 1234
(2015) (Alito, J., concurring).

      The Texas Supreme Court emphasized the distinction between

statutory delegations to administrative agencies and delegations to

private entities in Texas Boll Weevil, 952 S.W.2d at 469. As noted by the

court, delegations to private entities are particularly sensitive because

the private delegatee “may have a personal or pecuniary interest which is

inconsistent with or repugnant to the public interest to be served.” Id.

The Texas court further observed that when “public powers are

abandoned to those who are neither elected by the people, appointed by
                                    77

a public official or entity, nor employed by the government” a more

searching inquiry is required. Id. The Texas Boll Weevil court developed

an eight-factor test to determine the validity of delegations of public

authority to private agencies:

            1. Are the private delegate[e]’s actions subject to
      meaningful review by a state agency or other branch of state
      government?

            2. Are the persons affected by the private delegate[e]’s
      actions adequately represented in the decisionmaking
      process?

             3 Is the private delegate[e]’s power limited to making
      rules, or does the delegate[e] also apply the law to particular
      individuals?

            4. Does the private delegate[e] have a pecuniary or
      other personal interest that may conflict with his or her
      public functions?

            5. Is the private delegate[e] empowered to define
      criminal acts or impose criminal sanctions?

            6. Is the delegation narrow in duration, extent, and
      subject matter?

             7. Does the private delegate[e] possesses special
      qualifications or training for the task delegated to it?

            8. Has the Legislature provided sufficient standards to
      guide the private delegate[e] in its work?

Id. at 472.

      Third, in addition to recognizing the potential for more aggressive

state court scrutiny of unlawful delegation than that found in the federal

courts and the distinction between delegation to other public officials

and delegation to a private entity, the cases also recognize that some

types of government functions are simply not delegable.      For example,

the Secretary of Defense cannot delegate war-making authority to the

Rand Corporation, and the Attorney General cannot delegate the decision

whether to prosecute to a private attorney. See Paul R. Verkuil, Public
                                      78

Law Limitations on Privatization of Government Functions, 84 N.C. L. Rev.

397, 425 (2006). In federal procurement, the Office of Management and

Budget’s Circular A-76 prohibits contracting of “inherently governmental”

activities, including activities that involve “[d]etermining, protecting, and

advancing economic . . . interests by . . . contract management” and

activities “[s]ignificantly affecting the life, liberty, or property of private

persons.” Id. at 438.

      Our caselaw on unlawful delegation of authority is limited. Some

Iowa cases deal with the question of delegation of authority to

administrative agencies or government officials. See Gabrilson v. Flynn,

554 N.W.2d 267, 276 (Iowa 1996) (rejecting school board delegation of

authority to determine who has access to school records to school

official); Marco Dev. Corp v. City of Cedar Falls, 473 N.W.2d 41, 44 (Iowa

1991) (striking down delegation of authority to commit city to widen

street to city official); Iron Workers Local No. 67 v. Hart, 191 N.W.2d 758,

773 (Iowa 1971) (upholding delegation of power to the Iowa Civil Rights

Commission).

      However, in Bunger, we considered the delegation of rulemaking

authority by high schools to the Iowa High School Athletic Association

(IHSAA). 197 N.W.2d at 559. The IHSAA both arranged interscholastic

athletic events and had bylaws requiring schools to ban student athletes

engaging in undesirable conduct.        Id. at 557–58.     We held that the

delegation of authority to the IHSAA with respect to misconduct of

athletes was an unlawful delegation of school authority. Id. at 563. We

stated, “Where the act to be done involves judgment or discretion, it

cannot be delegated to an agent or committee.”           Id. at 560 (quoting

Kinney v. Howard, 133 Iowa 94, 105, 110 N.W. 282, 286 (1907)); see also
                                     79

Warren Cty. Bd. of Health, 654 N.W.2d at 914 (noting “delegable acts

typically involve functions that require little judgment or discretion”).

      In Bunger, we confronted the argument that a high school that did

not like the good-conduct rules of the IHSAA could simply withdraw from

the association. Id. at 561. We rejected the argument, noting that it was

important in considering unlawful delegation to look at “the realities of

the situation.” Id. We concluded that the “choice” to leave the IHSAA

was not a real choice because such departure would dramatically

undermine the competitive opportunities for high school athletes.           Id.

Our approach in Bunger contrasts with the approaches of a number of

states who took a more formalistic approach to the ability of a school

district to withdraw from statewide athletic organizations. See Quimby v.

School District No. 21, 455 P.2d 1019, 1021–22 (Ariz. Ct. App. 1969);

Hebert v. Ventetuolo, 480 A.2d 403, 407 (R.I. 1984); Anderson v. S.D.

High Sch. Activities Ass’n, 247 N.W.2d 481, 484 (S.D. 1976).

      We also considered an unlawful delegation problem in Gamel v.

Veterans Memorial Auditorium Commission, 272 N.W.2d 472 (Iowa 1978).

In Gamel, we considered the validity of a statute that required that the

commission    members     controlling   the   operations   of the Veterans

Memorial Auditorium had to be members of certain veterans groups. Id.

at 474. We adopted the “strict rule” embraced by Justice McCormick in

his dissent in Vietnam Veterans Against the War v. Veterans Memorial

Auditorium Commission, 211 N.W.2d 333, 339 (1973) (McCormick, J.,

dissenting), namely, “that private individuals cannot be empowered to

select boards to spend public funds, no matter how well qualified they

might be.”   Gamel, 272 N.W.2d at 476.        We reserved the question of

whether other powers might survive scrutiny if proper safeguards or

special qualifications are present. Id. But we concluded that in light of
                                     80

the special interests involved in the power to spend public funds, those

interests require “a strict rule against any delegation of sovereign power.”

Id.

      C. Caselaw Involving Unlawful Delegation Challenges and ATE

Systems.      There is a small body of caselaw considering unlawful

delegation challenges to ATE systems. In Arem, a Florida appellate court

held that the delegation of initial screening of violations to a private

company was an unlawful delegation.        154 So. 3d at 365.     Under the

challenged ATE system, the company first reviewed captured images and

made an initial determination of whether the image met the requirements

of the ordinance and the agreement between the contractor and the

municipality. Id. at 364–65. According to the Arem court,

             For all practical purposes, it is the vendor that decides
      which cases the [police officer] gets to review; it is the vendor
      who initially determines who is subject to prosecution for a
      red light violation; it is the vendor that obtains the
      information necessary for the completion of the citation; it is
      the vendor that creates the actual citation; it is the vendor
      that issues the citation to the registered owner of the vehicle;
      and, it is the vendor that eventually transmits the traffic
      citation data to the court.

Id. at 365.

      Under the circumstances, the Arem court concluded that the law

enforcement officer merely acquiesces in the vendor’s decision to issue

the citation. Id. Because Florida law only authorized law enforcement

officers, and not third party vendors, to issue traffic tickets, the court

found an unlawful delegation of authority to the third-party contractor.

Id.

      A somewhat different approach was taken by another Florida

appellate court in State ex rel. City of Aventura v. Jimenez (Jimenez I),

211 So. 3d 158 (Fla. Dist. Ct. App. 2016), aff’d sub nom. Jimenez II, 246
                                    81

So. 3d at 231. In this case, as in Arem, the plaintiff asserted that a red-

light citation generated by an ATE system was unlawful because the

vendor had unfettered discretion that exceeded the city’s statutory

authority to use an agent to review images under the applicable Florida

statute.   Id. at 159–60.   Unlike in Arem, the appellate court held that

there was no unlawful delegation of authority. Jimenez I, 211 So. 3d at

170.

       The Jimenez I court emphasized that under Florida law, a

government entity can outsource services and use private vendors

       provided the essential decisions regarding the exercise of
       government power are retained by the government or
       controlled by that body through the promulgation of
       standards that prevent the private party from having
       unfettered discretion in the exercise of government power.

Id. at 165–66. The court emphasized that the act of determining which

images established a red-light violation is a ministerial act. Id. at 166.

According to the court, “[W]hether a picture of a traffic light shows red

involves no discretionary judgment.” Id. The court went on to point out

that “the Vendor exercises no unfettered discretion when it determines

the camera misfired, the traffic light in the image displays green, or the
vehicle license plate number in the image is illegible.” Id. Further, the

court noted that the city had established guidelines related to the

determination of which images should be forwarded to the city for

potential prosecution. Id. at 167–68.

       The Jimenez I court distinguished the Arem case. Id. at 168–70.

According to the court, “Arem is distinguished from the instant case

because there was a different contract, there were no standards or

guidelines promulgated by the municipality, the Vendor determined

probable cause, and the City officer merely acquiesced in the Vendor’s
                                    82

determination.” Id. at 168. The Jimenez I court proceeded to canvass

the differences between the contract in the case before it and the

contract in Arem. Id. at 168–69.

      The Florida appellate court certified the question of delegation to

the Florida Supreme Court. Id. at 171; see Jimenez II, 246 So. 3d 219.

The Florida Supreme Court focused on the meaning of the term “review”

in the applicable statute. Jimenez II, 246 So. 3d at 225. According to

the court, there was no reason to believe that the Florida legislature used

the term in its most restrictive sense and that the notion of a review

necessarily involves some evaluative component.      Id. at 227–28.    The

court further declared that the Florida statute authorized local

government

      to contract with a private third-party vendor to review and
      sort information from red light cameras, in accordance with
      written guidelines provided by the local government, before
      sending that information to a trained traffic enforcement
      officer who determines whether probable cause exists and a
      citation should be issued.

Id. at 229 (emphasis added). Because the city provided the vendor with

written guidelines to use when reviewing and sorting the images, the ATE

program did not exceed the authority granted the vendor by the ATE

statute to review images. Id.

      Finally, in Falkner, a federal district court found that a red-light

ATE system did not unlawfully delegate power to a private entity even

when a law enforcement officer did not approve a citation.             150

F. Supp. 3d at 982. The Falkner court noted that the relevant statutes

governing red-light enforcement provided “a thorough framework . . .,

[including] a two-layer-technician-review process, leaving no room for the

traffic compliance administrator or technicians to ‘make the law.’ ” Id.
                                         83

The court further emphasized that the private vendor had no incentives

to act on private interests in determining violations. Id. at 983.

        Finally, the question of unlawful delegation was briefly addressed

in Hughes, 840 F.3d 987.           In this case, the United States Court of

Appeals for the Eighth Circuit in a conclusory fashion held that the ATE

system did not involve an unlawful delegation. Id. at 997–98.

        D. Factual Record on Delegation Issues.              There is no dispute

that Gatso is an independent contractor providing services to the City.

Further, under its contract with the City to provide ATE services, Gatso

has earned substantial revenues.           Beginning in 2010 and ending on

January 26, 2016, Gatso received over $10 million in payments from the

City.

        Under the contract between the City and Gatso, Gatso was

responsible for the initial processing of “violation packages.”                 The

contract does not provide details regarding the processing of violation

packages by Gatso. In addition to the contract, however, the City and

Gatso agreed on business rules/processing guidelines.                The business

rules/processing guidelines stated that the speed of the camera system

“will be configured 11 mph over the posted speed limit” and that

“vehicles traveling at 11 mph and over will be issued citations.”

        According to Gatso, after August 29, 2014, Gatso employees

processed an event by reviewing footage from ATE camera locations and

then submitted license plate information as a query to the Nlets

database, a law enforcement tool that the City authorized Gatso to

utilize. 11 If the Nlets query generated a response of “invalid” or “private”

or returned with partial information, Gatso rejected the event and no

        11Prior
              to August 29, 2014, Gatso subcontracted the Nlets query services to CMA
Consulting Services, Inc., in Latham, New York.
                                           84

further action was taken. Sworn officers of the City approved or rejected

the events submitted to the City. If the City rejected an event, no notice

of violation was issued. If the City accepted an event, Gatso sent a notice

of violation to the vehicle owner.

      Since August 29, 2014, 12 Gatso declared in interrogatory answers

that “the City has used the Gatso Xilium system,” which includes a

number of reasons for rejection of a potential violation.               The rejection

reasons in the Gatso Xilium system cover both red-light and speed

violations. Among the Gatso Xilium rejection reasons that seem to apply

to speed violations are camera image, erroneous lane trigger, plate not

readable,       dealer   plate,    out-of-country     plate,     vehicle     mismatch,

owner/address         information     missing,    vehicle      information    missing,

returned invalid, and weather. Although Gatso’s interrogatory answers

indicate that “the [C]ity has used the Gatso Xilium system,” the summary

judgment record does not directly establish whether the City approved

the use or whether it knew about the features of the system. All in all,

Gatso states that approximately sixty percent of the images captured at

all its ATE locations (including speed and red-light cameras) are sent to

police for potential violations.

      The ATE ordinance provides that a vehicle owner can contest a

citation before a hearing officer and if the hearing officer upholds the

citation, the vehicle owner may request the City file a municipal

infraction in small claims court.          Notices that are sent out by Gatso,

however, suggest that the hearing officers utilized by the City have the

power to enter orders and judgments.




      12Prior   to August 29, 2014, the CMA Site Violation manager system was utilized.
                                   85

      E. Unlawful    Delegation   Challenges    to   Use   of   the   Nlets

Database, Creation of a Hot Line, Assembly of Violation Packages.

We first consider whether the use of the Nlets database by Gatso as

authorized by Cedar Rapids amounts to an unlawful delegation.           We

conclude that it does not.     It is difficult to see how Cedar Rapids’

permission to Gatso to use the Nlets database to match drivers’ license

numbers with vehicle owners involves an exercise of judgment that might

run afoul of the nondelegation doctrine.

      We come to the same conclusion regarding Gatso’s responsibility to

maintain a hotline to provide information about the ATE system.        The

creation and implementation of a hotline to provide information to

persons about the ATE system does not involve an exercise of judgment

by Gatso.

      We next consider the plaintiffs’ claim that the City unlawfully

delegated power to Gatso because Gatso assembled violation packages

that were forwarded to the City and Gatso was responsible for the

mailing of violation notices to vehicle owners. We conclude that Gatso’s

function in assembling violation packages is ministerial in nature. And

the sending of notices of violation occurred only after review by a City

police officer. The mere mailing of a notice approved by the City does not

involve the exercise of the kind of judgment that might amount to an

unlawful delegation.    The judgment call that was involved in the

determination of who should be sent notices of violation, namely, the

decision to forward to the City only images of vehicles exceeding the

speed limit by eleven miles per hour, was approved by Cedar Rapids as

part of its business rules governing the ATE project.      There was no

unlawful delegation when the City approved the specifically challenged

policy as part of its business rules governing an ATE system.
                                      86

      F. Unlawful Delegation Challenge to Authority to Initiate ATE

Enforcement Action.           With respect to the unlawful delegation of

authority to initiate ATE action, at least one case seems to support the

plaintiffs’ position.   In Arem, a Florida appellate court decided that a

procedure similar to the one in this case in a red-light ATE system

amounted to an unlawful delegation of government power to a private

entity even though a traffic infraction enforcement officer of the city

pushed an accept button before enforcement commenced. 154 So. 3d at

361–65. The Arem court emphasized that the private vendor made an

initial determination of which photographs to forward to the city for

approval of a citation and that the city officials never received photos of

motor vehicles when the private vendor decided that an infraction did not

occur or was not supported. Id. at 365.

      Yet, Jimenez I puts Arem in perspective. Jimenez I characterized

the action of identifying infractions as ministerial. 211 So. 3d at 166.

But, Jimenez I also pointed to the guidelines created by the municipality

for filtering events, called “business rules,” in which the private vendor

operated, a framework that does not appear in the summary judgment

record here.    Id. at 162.     While Cedar Rapids did approve “business

rules” here, they do not include any rules for filtering events.

      A concerning factor is the contingency fee nature of the contract

between the City and Gatso, giving the contractor incentive to forward as

many citations as possible.        Yet, here a police officer reviews each

violation package before a citation is issued.

      Ultimately, we agree with Cedar Rapids. The plaintiffs claim the

ATE system automatically produces digital images of the rear of vehicles

that are detected as traveling at more than eleven miles per hour over the

speed limit. No discretion is involved in the development of these images.
                                     87

The record then shows that Gatso reviews the automatically triggered

images and filters out events where the license plate was not fully visible,

no match was generated between the license plate number and the

vehicle owner in the Nlet database, or the captured image shows an

emergency vehicle with its emergency lights on. Excluding these events

is ministerial in nature.   The images sent to Cedar Rapids are then

reviewed by a Cedar Rapids law enforcement officer and approved before

Gatso sends a notice of violation to the vehicle owner. While it might

have been preferable if the initial screening decision by Gatso were

subject to a transparent regulatory framework, as in Jimenez I, 211

So. 3d 158, we do not think the lack of such a framework undermines

the ministerial character of the initial screening decisions by Gatso. We

conclude Cedar Rapids was entitled to summary judgment on the

plaintiffs’ delegation claim on this particular ground.

      G. Unlawful Delegation Through Use of Volunteers.            We now

turn to the question of whether Cedar Rapids’ use of recruited volunteers

as hearing officers involves an unlawful delegation of power.           We

preliminarily note that while the district court in its order on summary

judgment recognized that the plaintiffs made this claim in its summary

of the plaintiffs’ claims, the district court did not enter a ruling on this

specific question.   See Meier v. Senecaut, 641 N.W.2d 532, 537 (Iowa

2002) (“It is a fundamental doctrine of appellate review that issues must

ordinarily be both raised and decided by the district court before we will

decide them on appeal.”).      As a result, there is a serious question

regarding preservation.

      In any event, the argument is without merit. The volunteers are

not serving in their private capacity when they act as hearing officers,

but to the extent they exercise governmental powers, they are acting on
                                    88

behalf of Cedar Rapids. Although there is no set criteria for appointment

of hearing officers, we see the situation as no different, for purposes of

unlawful delegation analysis, than when a city manager recruits citizens

to volunteer to serve on various boards and commissions of the city. In

this setting, Cedar Rapids has not delegated its powers, but has

recruited citizens to help exercise its powers. The district court did not

err in granting summary judgment to Cedar Rapids on the delegation of

power claims related to volunteer citizen hearing officers.

       H. Unlawful Delegation Challenge as a Result of Calibration.

The last substantial delegation question relates to the calibration of the

ATE equipment.       On this issue, the court is evenly divided.      Two

members of the court (Chief Justice Cady and Justice Wiggins) join me in

concluding that the district court erred in granting summary judgment

on the unlawful delegation issue as it relates to calibration. We would

find that the moving party failed to show as a matter of law that the

calibration function did not unlawfully involve the exercise of judgment.

Three members of the court (Justices Waterman, Mansfield, and Zager)

are of the opinion that the district court properly granted summary

judgment on the issue.       As a result, the district court judgment is

affirmed as a matter of law. Iowa Code § 602.4107; State v. Effler, 769

N.W.2d 880, 882–83 (Iowa 2009).

       VII. Unjust Enrichment.

        A. Introduction. Plaintiffs bring a claim for unjust enrichment.

Unjust enrichment is an equitable claim that arises when the plaintiff

proves that “the defendant received a benefit that in equity belongs to the

plaintiff.”   Slade v. M.L.E. Inv. Co., 566 N.W.2d 503, 506 (Iowa 1997).

The elements of unjust enrichment are (1) enrichment of the defendant,

(2) at the expense of the plaintiff, (3) under circumstances that make it
                                   89

unjust for the defendant to retain the benefit.   State ex. rel. Palmer v.

Unisys Corp., 637 N.W.2d 142, 154–55 (Iowa 2001).

      It has often been stated that when one makes a voluntary

payment, with full knowledge of the facts, unjust enrichment will not lie.

See Lincoln Nat’l Life Ins. v. Fischer, 235 Iowa 506, 516, 17 N.W.2d 273,

278 (1945) (noting that at common law taxes voluntarily paid could not

be recovered).   In jurisdictions that recognize the voluntary payment

doctrine, a mistake of fact, such as payment to a wrong party, may

prevent application of the voluntary payment doctrine, but a mistake of

law does not give rise to an unjust enrichment claim. See, e.g., Case W.

Reserve Univ. v. Friedman, 515 N.E.2d 1004, 1005 (Ohio Ct. App. 1986);

Butcher v. Ameritech Corp., 727 N.W.2d 546, 553 (Wis. Ct. App. 2006). In

addition, the voluntary payment doctrine traditionally has not applied in

cases involving fraud or duress. See, e.g., Ramirez v. Smart Corp., 863

N.E.2d 800, 808 (Ill. App. Ct. 2007); BMG Direct Mktg., Inc. v. Peake, 178

S.W.3d 763, 775 (Tex. 2005); Butcher, 727 N.W.2d at 553.

      The voluntary payment doctrine has come under attack in some

quarters.   See John E. Campbell & Oliver Beatty, Huch v. Charter

Communications, Inc.: Consumer Prey, Corporate Predators, and a Call

for the Death of the Voluntary Payment Doctrine Defense, 46 Val. U.

L. Rev. 501, 526–27 (2012) [hereinafter Campbell].      The Restatement

(Third) of Restitution and Unjust Enrichments cautions that it should be

applied only in the narrow circumstance of when a party pays an

obligation who knows that the ultimate risks of liability is uncertain but

elects to forgo transaction costs in the matter. See Restatement (Third)

of Restitution and Unjust Enrichment § 6, cmt. e (2011).

      A number of states, while not expressly embracing abolition of the

voluntary payment rule, have sharply limited its scope. For example, the
                                      90

fraud exception to the voluntary payment doctrine has been expanded to

include “fraud or improper conduct.”           See, e.g., Nat’l Enameling &

Stamping Co. v. City of St. Louis, 40 S.W.2d 593, 595 (Mo. 1931) (holding

“fraud or improper conduct” negates the voluntary payment defense);

Woodmen of the World Life Ins. Soc’y v. Am. Soc’y of Composers, Authors

& Publishers, 19 N.W.2d 540, 545 (Neb. 1945) (same); Hawkinson v.

Conniff, 334 P.2d 540, 543 (Wash. 1959) (stating jury instruction on

voluntary payment provides “improper conduct or undue advantage”

renders payment involuntary). Other cases have broadly defined duress

or coercion to include “the exploitation of a superior bargaining position

. . . when the stronger party seeks additional leverage by exploiting a

vulnerability to which the weaker party . . . is not properly subject.” City

of Scottsbluff v. Waste Connections of Neb., Inc., 809 N.W.2d 725, 744

(Neb. 2011). Such duress may even include “threats” of judicial process,

even if the defendant had a legal right to take a threatened action. Id.

Another line of cases emphasize that when transactions are unlawful, the

voluntary payment doctrine does not apply.         MacDonell v. PHH Mortg.

Corp., 846 N.Y.S.2d 223, 224 (App. Div. 2007) (barring doctrine where

plaintiff asserts a statutory cause of action); Pratt v. Smart Corp., 968

S.W.2d 868, 872 (Tenn. Ct. App. 1997) (holding voluntary payment

doctrine “does not come into play in situations involving a transaction

that violates public policy”). See generally Campbell, 46 Val. U. L. Rev.

at 508; Colin E. Flora, Practitioner’s Guide to the Voluntary Payment

Doctrine, 37 S. Ill. U. L.J. 91, 107 (2012).

      In State ex rel. Miller v. Vertrue, Inc., we noted that Iowa had not

embraced the voluntary payment doctrine and declined to do so in that

case. 834 N.W.2d 12, 32 (Iowa 2013). But see Meyer v. Gotsdiner, 208

Iowa 677, 681, 226 N.W. 38, 39 (1929) (describing voluntary payment
                                      91

doctrine as “well settled”).     In any event, we noted in Vertrue that we

would not apply the voluntary payment doctrine in cases involving

consumer fraud.     Id. at 32.    We reasoned that where a violation of a

consumer fraud statute was shown, not allowing recovery for unjust

enrichment would undermine the purpose of the statute. Id. We cited

cases from other jurisdictions for the proposition that where statutory

violations were present, blocking recovery through application of the

voluntary payment doctrine would be inequitable. Id.

      The question of unjust enrichment has been raised in several ATE

cases. In Hughes, the Eighth Circuit rejected the argument, apparently

on the ground that the underlying claims lacked merit and there was

therefore no reason to find unjust enrichment.           840 F.3d at 997.

Another federal court dismissed unjust enrichment as merely duplicative

of other claims.    Leder, 81 F. Supp. 3d at 227–28 (rejecting unjust

enrichment as duplicative of other claims).       A number of courts have

rejected unjust enrichment under the voluntary payment doctrine. Id. at

228; Ballard, 419 S.W.3d at 122; Smith, 409 S.W.3d at 420.

      In two ATE cases, however, the unjust enrichment claim survived

appellate review.    In Brunner v. City of Arnold, the appellate court

determined there might have been sufficient duress to avoid application

of the voluntary payment doctrine.         427 S.W.3d 201, 235–36 (Mo. Ct.

App. 2013), overruled in part on other grounds in Tupper v. City of

St. Louis, 468 S.W.3d 360, 369 n.7 (Mo. 2015) (en banc). The Brunner

court also distinguished between payment to the city and payment to the

vendor. Id. at 235. The Brunner court suggested that payment to the

vendor might be subject to unjust enrichment. Id.

      Similarly, in Damon v. City of Kansas City, another Missouri

appellate court considered a case where the trial court granted a motion
                                         92

to dismiss an unjust enrichment claim in an ATE case. 419 S.W.3d 162,

194 (Mo. Ct. App. 2013). The plaintiffs alleged, among other things, that

they made payments under threat that the city would take further action

against them if they did not. Id. They alleged that the respondents knew

that their efforts were illegal.   Id.    Noting that the voluntary payment

doctrine was not available when the payments were made under duress,

fraud, or mistake of fact, the Missouri appellate court reversed the trial

court’s dismissal of the unjust enrichment action. Id.

      B. Positions of the Parties. The plaintiffs argue that as a result

of the implementation of the unlawful ordinance, Cedar Rapids and

Gatso were unjustly enriched. The plaintiffs reject any application of the

voluntary payments doctrine, pointing out that under the facts

presented, the payments cannot be considered ”voluntary” because of

Cedar Rapids’ threats in notices to report the plaintiffs to a credit agency.

Further, the plaintiffs maintain that Iowa has never adopted the

voluntary payments doctrine.

      Cedar Rapids argues that because the ATE system is not illegal, it

is not unjust for Cedar Rapids and Gatso to keep monies that they have

collected. It is also further pointed out that the monies are paid to the

City, not to Gatso.   Finally, Cedar Rapids additionally points out that

plaintiffs Olson and Smith made voluntary payments and, as a result,

are not entitled to bring an unjust enrichment claim. See Meyer, 208

Iowa at 681, 226 N.W. at 39. Cedar Rapids also notes that Brooks has

not paid a fine and thus has no monetary claim against the defendants.

      C. Discussion. We agree with the line of cases that provide that

when a statutory violation is alleged, the doctrine of voluntary payment

does not apply. See MacDonell, 846 N.Y.S.2d at 224; Pratt, 968 S.W.2d

at 872; see also Vertrue, 834 N.W.2d at 42–43. We have rejected all of
                                         93

the     plaintiffs’   constitutional   claims   and   the   plaintiffs’   delegation

challenges except on the calibration issue upon which the court was

deadlocked.       No unjust enrichment arises from these rejected claims.

However, we have reversed the district court on the issue of preemption.

Because of this changed legal landscape and because we have rejected

the voluntary payment doctrine, we vacate the district court’s judgment

on unjust enrichment and remand the matter to the district court for

further consideration in light of changed posture of the case.

         VIII. Conclusion.

         For the above reasons, we vacate the decision of the court of

appeals and affirm in part and reverse in part the judgment of the

district court.

         DECISION OF COURT OF APPEALS VACATED; JUDGMENT OF

DISTRICT COURT AFFIRMED IN PART, REVERSED IN PART, AND

REMANDED.

         Cady, C.J., and Wiggins, J., join this opinion. Zager, J., joins this

opinion except for part VI.H.          Waterman, J., files a separate opinion

concurring in part and dissenting in part. Mansfield, J., files a separate

opinion concurring in part and dissenting in part in which Waterman, J.,

joins in parts I and II and Zager, J., joins in part II. Hecht, J., takes no

part.
                                          94

                                        #16–1031, Behm v. City of Cedar Rapids



WATERMAN, Justice (concurring in part and dissenting in part).

       I join most of the court’s opinion but concur only in the result for

part IV and dissent from parts V.A and VI.H.                  I write separately to

reiterate my call to expressly overrule Racing Ass’n of Central Iowa v.

Fitzgerald (RACI II), 675 N.W.2d 1 (Iowa 2004). 13               I dissent from the

court’s reversal of summary judgment based on preemption of the default

provision in the ordinance. In addition, I join Justice Mansfield’s dissent

concluding the City of Cedar Rapids did not unlawfully delegate to Gatso

calibration of the automated traffic enforcement (ATE) equipment.

       I. RACI II Should Be Overruled.

       I am unable to join part IV because it embraces RACI II, a

precedent that is plainly erroneous. The RACI II majority, purporting to

apply the federal rational basis test, held that a tax differential for land-

based and riverboat casino slot machine revenue violated the equal

protection clause of the Iowa Constitution on remand after the

unanimous United States Supreme Court held the differential did not

violate the Federal Equal Protection Clause. 675 N.W.2d at 3. The RACI

II majority thereby essentially took the position that the nine Justices of

the United States Supreme Court were irrational in applying the same

rational basis test in the same case, despite the well-settled and long-

standing tradition of judicial deference to legislative classifications.

RACI II was wrongly decided for the reasons set forth in the eloquent

separate dissents by Justices Cady and Carter.                    See id. at 16–17


       13Icalled for overruling RACI II in Qwest Corp. v. Iowa State Board of Tax Review,
829 N.W.2d 550, 566 (Iowa 2013) (Waterman, J., concurring), and in King v. State, 818
N.W.2d 1, 43 n.28 (Iowa 2012) (Waterman, J., concurring).
                                       95

(Carter, J., dissenting); id. at 17–28 (Cady, J., dissenting); see also

Fitzgerald v. Racing Ass’n of Cent. Iowa, 539 U.S. 103, 110, 123 S. Ct.

2156, 2161 (2003) (reversing RACI I on federal equal protection grounds);

Racing Ass’n of Cent. Iowa v. Fitzgerald (RACI I), 648 N.W.2d 555, 563–64

(Iowa 2002) (Neuman, J., dissenting, joined by Carter and Cady, JJ.).

      RACI II as a practical matter has been limited to its facts. We have

never relied on RACI II to strike down another municipal or state

legislative enactment. Yet members of this court persist in citing RACI II

for the view that courts can apply “rational basis with teeth” to declare

unconstitutional legislative enactments that do not involve fundamental

rights or a protected class. The court’s dicta today suggests that litigants

can mount evidentiary challenges to ATE ordinances or other laws and

that judges can then weigh the “evidence” to strike down a duly enacted

law as unconstitutional.          In my view, that use of RACI II is

antidemocratic and contrary to basic principles of self-government. See

Honomichl v. Valley View Swine, LLC, 914 N.W.2d 223, 240 (Iowa 2018)

(Waterman, J. concurring) (“We need to be cognizant of the right of

Iowans to govern themselves through laws passed by their chosen

representatives, a right recognized explicitly in article I, section 2 [of the

Iowa Constitution].”). The elected branches are accountable to voters.14

Judges, applying rational basis review to a record made by litigants,

should not override legislative policy choices and classifications as

irrational.




      14The Iowa legislature is free to ban the use of ATE equipment such as speed
cameras or red-light cameras. Most Iowa cities have chosen not to implement ATE
ordinances.
                                    96

      II. The Default Provision of the Ordinance Is Not in Play.

      Our court errs by determining that the default provision in the

Cedar Rapids ATE ordinance requires reversal of the summary judgment

dismissing the plaintiffs’ preemption claim. That default issue was never

raised in trial court or on appeal, presumably because none of the

plaintiffs in this case were defaulted. I doubt the plaintiffs have standing

to challenge the default provision, but even assuming they do, the claim

was not preserved for appellate review. Neither the trial court nor the

court of appeals addressed the default theory, and the City was never

given the chance to respond.      Our court should not be raising and

deciding the issue sua sponte.    Feld v. Borkowski, 790 N.W.2d 72, 78

(Iowa 2010) (“Our obligation on appeal is to decide the case within the

framework of the issues raised by the parties. Consequently, we do no

more and no less.” (Citation omitted.)); In re S.P., 719 N.W.2d 535, 540

(Iowa 2006) (“[T]he court is prohibited from assuming the role of an

advocate.”); Hyler v. Garner, 548 N.W.2d 864, 876 (Iowa 1996) (“[W]e will

not speculate on the arguments [the parties] might have made and then

search for legal authority and comb the record for facts to support such

arguments.”). At a minimum, we should give the parties the opportunity

to file supplemental briefing on the default issue.        This case was

submitted for argument a year ago and resubmitted this August. Our

court has had ample time to request supplemental briefing.

      Why not wait for another case actually presenting claims by a

defaulted party, adversarial briefing, and a trial court ruling to review?

Our court, by freelancing without input from the parties, risks

unintended consequences and short circuits the adversary system.

      The scope of today’s gratuitous decision is unclear. Will Iowa cities

now be required to go to court to collect fees and penalties routinely paid
                                    97

on demand or forwarded to collection agencies without a judgment? Will

this be an added burden on the courts and an extra cost to the citizens

who now must pay the filing fees for the court action? I do not know.

The City should have been allowed the opportunity to be heard before we

decided the issue.

      Upon reaching an issue never presented to us, our court comes up

with the wrong remedy. Why invalidate the entire ordinance if only one

provision is invalid? I would apply Iowa’s well-settled law to sever and

save the rest of the ordinance.    See Iowa Code § 4.12 (2018) (“If any

provision of an Act or statute or the application thereof to any person or

circumstance is held invalid, the invalidity does not affect other

provisions or applications of the Act or statute which can be given effect

without the invalid provision or application, and to this end the

provisions of the Act or statute are severable.”); Breeden v. Iowa Dep’t of

Corr., 887 N.W.2d 602, 608–09 (Iowa 2016) (reviewing severability

doctrine).   Finally, the court fails to explain why these plaintiffs, who

were never defaulted, are entitled to reversal of the summary judgment

for the City on this ground.
                                    98
                                  #16–1031, Behm v. City of Cedar Rapids
MANSFIELD, Justice (concurring in part and dissenting in part).

      I generally join the court’s opinion except for parts V.A and VI.

      In part V.A, I think the court’s legal analysis may have merit, but

the court is reversing summary judgment on the basis of an argument

not advanced on appeal.

      I concur as to result only on part VI, except for part VI.H, where I

dissent. Because the court is equally divided as to part VI.H, it is my

understanding that the district court’s ruling here is affirmed by

operation of law.
      I. The District Court’s Ruling on Preemption Should Be
Affirmed.

      The district court granted summary judgment to the defendants on

the plaintiffs’ claim of state law preemption, reasoning,

             The ATE [Automated Traffic Enforcement] ordinance is
      not preempted because vehicle owners are merely offered an
      additional forum to challenge their ATE citations. Owners
      may still submit a form specified by the City to have a
      municipal infraction, as opposed to ATE citation, issued and
      filed with the court.     Accordingly, the ATE ordinance’s
      administrative hearing presents no conflict with the judicial
      process. For the same reason, the ATE ordinance does not
      conflict with Iowa Code section 364.22(6) and (4) because, by
      providing an additional channel to challenge a traffic fine,
      the ATE ordinance leaves untouched the process of
      contesting a municipal infraction through a court of law.

(Citations omitted.)
      On appeal, the plaintiffs challenge this ruling head-on, arguing

that every municipal infraction “must” be heard exclusively in small

claims court.   Appellants’ Br. at 24 (“Using an administrative hearing

process before a volunteer citizen with no legal training is not consistent

with this language.”); id. at 25–26 (“The Ordinance permits a type of
                                     99

administrative hearing that the statute prohibits (by requiring a hearing

before a magistrate or district associate judge).”).

       This argument seems to me plainly wrong.           Alternative dispute

resolution mechanisms are ubiquitous these days.           There is nothing

improper when a municipality supplements state law by offering another,

more efficient way for a vehicle owner to contest a traffic violation.

       It is helpful to examine Rhoden v. City of Davenport, 757 N.W.2d

239 (Iowa 2008), in some detail. One of the specific preemption issues

there was whether Davenport could make civil fines for ATE violations

“payable to the City at the City’s finance department.” Id. at 241. Iowa

Code sections 364.22(6) and 602.8106 require fines for municipal

infractions to be collected by the clerk of court, who then remits ninety

percent to the city. Id. The plaintiffs argued that Davenport’s ordinance

was “inconsistent with this requirement.”       Id.    We held there was no

conflict between the Iowa Code sections and the Davenport ordinance,

which “require[d] only that payments for unchallenged violations, which

do not involve the court, be payable to the City’s finance department.”

Id.   We emphasized that section 364.22(6) provides only that “all civil

penalties collected by the court be payable to the clerk of court and then

remitted to the city.” Id.

       Thus, I read Rhoden as rejecting the plaintiffs’ exclusivity

argument.    Municipalities can create other mechanisms for processing

traffic violations, even when they may deprive the State of Iowa of

revenue. Going through the court is not mandatory.

       I think the majority makes a plausible showing that any such

alternative must ultimately be backstopped by a judicial municipal

infraction proceeding.   That is, unless the vehicle owner has voluntarily

opted into an administrative proceeding, the municipality must file a
                                          100

municipal infraction case before it can collect from a nonpaying,

nonresponding vehicle owner.           Like the majority, I question whether a

city can impose liability on a vehicle owner who does nothing.

       However, while this is potentially a good argument, I don’t see it

anywhere in the plaintiffs’ briefing.            See Appellants’ Br. at 23–28;

Appellants’ Reply Br. at 24–26. 15 Like my colleague Justice Waterman, I

would leave its resolution for another day. I would not reverse summary

judgment based on an argument not urged on appeal.

       Perhaps this argument hasn’t been urged on appeal because it

doesn’t apply to these plaintiffs.          As my colleague Justice Waterman

points out, none of these plaintiffs has been defaulted. All of them went

through the administrative process and have either paid or not paid their

fines. They have not alleged that anything happened to them after that.

       In addition, even if we reach the majority’s theory in this case,

there may be defenses. If the owner didn’t pay, the owner has suffered

no damages.       If the owner did pay but committed the ATE violation

anyway, how is the owner harmed? The owner paid the same fine he or

she would have had to pay anyway.                   These matters are open for

resolution on remand under today’s decision.

       II. There Was No Unlawful Delegation.

       Turning to my second area of disagreement, I do not believe it

amounts to unlawful delegation if a municipality fails to calibrate an

outside party’s ATE equipment adequately.                 Lack of calibration may

present other issues, but it doesn’t amount to unlawful delegation.

       In my view, a municipality can use third-party contractors to

initially detect traffic violations, so long as a municipal official makes the


       15I
        will not quote further from the plaintiffs’ briefs, but they are available on the
www.iowacourts.gov website.
                                    101

ultimate call whether to issue a citation or not. See Hughes v. City of

Cedar Rapids, 840 F.3d 987, 998 (8th Cir. 2016) (“[T]here is no improper

delegation (or in statutory terms, conferral) of power upon Gatso.”);

Jimenez v. State, 246 So. 3d 219, 231 (Fla. 2018) (Canady, J.,

concurring) (“[T]he critical issue is not the details of the relationship

between the local government and the vendor.         Rather, the dispositive

point is that the local government conforms to the requirement that only

law enforcement officers and traffic infraction enforcement officers—

rather than employees of a vendor—may issue traffic citations.”).

      A municipality “cannot delegate the right to make decisions it has

been empowered to make,” but it can “delegate its right to perform

certain acts and duties necessary to transact and carry out its powers.”

Warren Cty. Bd. of Health v. Warren Cty. Bd. of Supervisors, 654 N.W.2d

910, 914 (Iowa 2002).      Put another way, so long as the municipality

makes the final decision, it can outsource “certain acts and duties.” Id.

      Bunger v. Iowa High School Athletic Association, 197 N.W.2d 555

(Iowa 1972), illustrates this distinction. There the question was, “Can a

school board re-delegate its rule-making power regarding pupils to some

other organization?” Id. at 559. We said no. Id. at 560–63.

      This is different.    It is undisputed that Cedar Rapids set the

criteria for when Gatso should report a violation to it and then reviewed

each citation before issuing it. Cedar Rapids did not delegate authority

to issue a rule or to bring a civil or criminal charge; rather, the alleged

delegation related only to detection of potential violations.

      My colleagues cite an unlawful delegation case from the Florida

Fourth District Court of Appeal pertaining to ATE enforcement. See City

of Hollywood v. Arem, 154 So. 3d 359 (Fla. Ct. App. 2014). However, that

case is no longer good law.      In Jimenez, the Florida Supreme Court
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specifically disapproved Arem while approving other Florida Court of

Appeal decisions that ruled otherwise.         246 So. 3d at 231 (majority

opinion) (“Accordingly, we answer the rephrased certified question in the

affirmative and approve the decision of the Third District in Jimenez. We

also approve the decision of the Second District in Trinh and disapprove

the decision of the Fourth District in Arem to the extent it is inconsistent

with this opinion.”).    My colleagues discuss Jimenez at some length,

without ever mentioning that it expressly disapproved Arem. 16

      My colleagues confuse an evidentiary issue with an unlawful

delegation issue. If Cedar Rapids did not adequately calibrate the ATE

equipment, that might be a reason not to allow a reading from that

equipment to establish a violation.         However, it doesn’t present an

unlawful delegation problem.       Likewise, if the police decide to use an

outside DNA testing lab for criminal investigation purposes or a K-9 to

detect drugs, that may lead to some evidentiary issues that have to be

resolved, but it isn’t an improper delegation of governmental power.

      I also wonder whether our decision in City of Des Moines v. Iowa

Department of Transportation, 911 N.W.2d 431 (Iowa 2018), renders the

entire calibration issue moot. In that we case, we found the department

of transportation lacked the authority to promulgate its regulations

regarding municipal ATE systems. Id. at 449–50. This would include

the regulation requiring municipalities to calibrate ATE systems.

Plaintiffs’ argument concerning calibration is limited to a single

paragraph of its brief and is predicated on the IDOT regulation.             See

Appellants’ Br. at 32.



      16My  colleagues give more airplay to the intermediate appellate opinion in
Jimenez (which they label Jimenez I) than to the supreme court opinion.
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      For the foregoing reasons, I concur in part and dissent in part and

would affirm the entire summary judgment.

      Waterman, J., joins parts I and II of this concurrence in part and

dissent in part.

      Zager, J., joins part II only of this concurrence in part and dissent

in part.
