People pull guns out in pawn and gun shops all the time. I've taken mine out numerous times to show a feature, ask a question, try a holster, etc. And, it doesn't matter if this guy's gun was in a holster or not, or even if it was loaded or not. He handled it safely, didn't wave it around, didn't point it at anyone. Sounds to me like no big deal, except you freaked out and started yelling at the guy and blowing it out of proportion. You're lucky your reaction didn't start something. If it had been me I'd have told you in no uncertain terms where to go and how to get there.