Isn't it owned by the city?
CRIMES AND PUNISHMENTS
FIREARMS, EXPLOSIVES AND OTHER DEADLY WEAPONS
18-3302J. Preemption of firearms regulation. (1) The legislature finds that uniform laws regulating firearms are necessary to protect the individual citizen's right to bear arms guaranteed by amendment 2 of the United States Constitution and section 11, article I of the constitution of the state of Idaho. It is the legislature's intent to wholly occupy the field of firearms regulation within this state.
(2) Except as expressly authorized by state statute, no county, city, agency, board or any other political subdivision of this state may adopt or enforce any law, rule, regulation, or ordinance which regulates in any manner the sale, acquisition, transfer, ownership, possession, transportation, carrying or storage of firearms or any element relating to firearms and components thereof, including ammunition.
[18-3302J, added 2008, ch. 304, sec. 2, p. 845.]
My layman's understanding of situations like this is that the "venue" (group renting the facility) may impose special rules, but that the municipality may not make such a condition of the rental agreement, nor make it standard policy to all events held there.I see this Idaho center issue as a slippery slop to firearm restrictions by circumventing state preemption of gun laws. I will explain my thought on this towards the end of my rant.
The only way I see this remedied is through the courts or to get our legislators to amend the code 18-3302 to prohibit this activity.