What I noticed that was odd when I was there was the lack of supervision inside the truck. They had a big guy at the door (see photo) so you couldn't just walk out with one. However, it felt a little like being at Guitar Center (but with MUCH nicer guitars than most!). I played on a Johnny A, Historic Les Paul R0, 335, and an L5 and the guy working the truck didn't really say anything to me - I'd just walk up to one and take it down and sit down on a stool and try it out. In fact at one point, another "customer" like me turned and handed me his guitar - thinking I worked there I believe - guess the "famous guitars" shirt I was wearing may have been a contributing factor
Anyway, it seemed to me that the real workers spent more time watching those people playing the guitars outside of the truck, under at the "listening station" tents - and the thing is that these were the Gibson USA and Epiphone guitars. The Custom Shop stuff (in the truck) actually had LESS supervision by the workers