It's a pretty good bet that all gun shows have the "No loaded guns" policy. I just unload my gun in the car. With my ammo in my pocket I gladly lock the slide open and hand it to the officer at the door for Tie Strapping. When I leave it is easy to reload in the car. No big deal, no hassle, no problem. I Have an extreme reluctance to ever leave my gun in my car. Especially at a gun show that is such a gun rich environment for thieves.