From CRS 18-9-115
(3) "Public conveyance" includes a train, airplane, bus, truck, car, boat, tramway, gondola, lift, elevator, escalator, or other device intended, designed, adapted, and used for the public carriage of persons or property.

(4) "Facility of public transportation" includes a public conveyance and any area, structure, or device which is designed, adapted, and used to support, guide, control, permit, or facilitate the movement, starting, stopping, takeoff, landing, or servicing of a public conveyance or the loading or unloading of passengers or goods.

18-9-118. Firearms, explosives, or incendiary devices in facilities of public transportation
A person commits a class 6 felony if, without legal authority, he has any loaded firearm or explosive or incendiary device, as defined in section 9-7-103, C.R.S., in his possession in, or carries, brings, or causes to be carried or brought any of such items into, any facility of public transportation, as defined in section 18-9-115 (4).

Oddly enough, one of these checks out. I don't know of a cop that would ever even dream of charging somone with this BS though. lmao. That being said...
What are these "public nuisance laws" he's referring to?