While his museum is impressive, I am not a fan of getting muzzle swept constantly by a bunch of 18 year olds who just bought their first $300 SKS off armslist and don't have a darn clue how to safely use the thing...
Last time I was there, one of the ROs walked up and picked up my pistol to verify it was cleared during a ceasefire. Didn't ask permission, just grabbed it. When I told him it didn't have a slide lock, he took the liberty of sticking a dirty steel case off the ground into it to hold the slide open while flagging the couple next to me.
On top of that, every time Mel runs his mouth on TV or the radio, he gives the gun grabbers tons of ammo...
Needless to say, I won't ever be going back.