I ran into the same thing,,,
This was at the Wanenmacher gun show in Tulsa last Nov 10th.
I was looking at an H&R revolver,,,
I asked the guy to cut the zip tie so I could check the action.
He said he could not cut the tie,,,
I asked him if he seriously expected me to buy a gun I couldn't check out.
His answer was "Depends on how much you want the gun."
Sheesh!, I replied.
I did ask at the front and was told it isn't any kind of law,,,
It was simply an enforceable policy of the gun-show sponsor,,,
I was also told that the sponsors never said anything about removing them for a check-out.
I haven't been able to find any state law about the zip-ties,,,
The cynical side of me says it is a cover for some dealers to hide behind.
Caje: The coward dies a thousand times, the brave only once.
Kirby: That's about all it takes, ain't it?
Combat: "A Silent Cry"
Aarond is good,,, Aarond is wise,,, Always trust Aarond! (most of the time)