Day Passers Rule!
No I didn't sneak into any of the classes. Seems too much like learning to fish inside a Bass Pro Shop to me.
FWIW, I had my orange day pass wrist band on, but I was wearing a long sleeve shirt, so you couldn't even see it. That said, I wasn't able to park until they verified that I had paid for the day, and that's when they issued me my wrist band.
Lucky for me things were kind of loose. I bought an OzTent when I was there, and it comes in a large, somewhat heavy, cumbersome box. When I was getting ready to leave, I walked back to my truck and drove right into the vendor area to pick up the tent and put it right into my vehicle.