It took about an hour and a half to get in the door once the line started moving. I walked around the perimeter of the convention center and finally found the GRNC booth. I volunteered at the booth for a few hours and then went walkabout to see what I could see.
It was about that time that * Cletus shot
I can now transfer "Go to a Gun Show" from my "Things To Do Before I Die" list to my "Things I Am Not Likely To Do Again (Whilst Sober/On Purpose)" list.
I should have gone to the Guns Across America rally instead.
*UPDATE: Contrary to what I was told as we were leaving the building, Cletus touched off his scattergun, not his pistol, and hit two bystanders with the pellets while showing the nice deputy it was unloaded ("slightly" wounding the deputy's hand in the process). The Refuge staff would like to thank commenter cthulhu at Ace of Spades HQ for the correction.
UPDATE Part II: Now it's not real clear whether it was Cletus who touched off the scattergun or Deputy Fife. Either way, Cletus brought a scattergun to the show with a round in the chamber, someone violated rules 1 and 3 at a bare minimum, and a bad day was had by all involved, thus adding credence to the statement "There are four rules, violating any 2 will result in a bad day."