Good for him. E'ville police have a reputation for general anti-liberty activity.
SB292, the preemption law is going to be challenged by stubborn city/county governments and the uninformed constabulary. The only choice is to take a brave stand and fight back like this fellow is doing. There needs to be a few of these won in court with significant $$ fines levied on the offending local gov't to stop this crap. Yes, that's taxpayer money, lawsuit insurance or not. That's the beauty of it. The citizens will hopefully be up in arms (pun?) about the stupidity of getting caught violating the law, losing a judgment and paying a sizeable fine. Local governments don't like being sued.
Liberty requires constant vigilance and SB292 gives folks the backing to get it done. Heck, even in OC 'paradise' Wyoming, where there is an iron clad preemption law, local governments frequently will attempt to challenge preemption. Pine Bluffs, Cody, etc.
We probably won't hear much until this goes completely through the court system. Hopefully, it won't be settled out of court. That risks sealed results, and minimizes the obvious victory.