um, i remember the first homebake i went to, it wasnt via the entry so, i dont know if u can get in with them, but they have deck chairs everywhere like where the markets are for the ppl who want to eat and stuff. I also now OWN one of them, well, kinda i have it, its mine, it sitting right next to me.
SO if you cant get your chair in... just borrow one of theirs
but i dare say it would be same old festival rules. no metal objects, knifes, guns, tanks, crap like that...