I called the fair office again this morning and although I got forwarded to a bunch of different people, all of whom were a bit snippy (yeah, I probably deserved it for not picking stuff up on the day I was supposed to), I was finally told I could pick my stuff up this morning at 9am at the expo building - there would be some people still there cleaning up.
So I rushed over there and there were my pieces as pristine as I'd left them. Whew!
OLD HABITS DIE HARD
14 hours ago