Hey Tom,
I can't speak for the Tech guys, but I'd be suprised if you counldn't find one of them to check your car out quickly and throw a sticker on it. The key here is finding the right person. Try to get some names from Rebecca before getting there, look up their car and # on the entry list, and track them down.
Looking forward this event, and especially to just being a general PITA to Brian and Jim.
