They will put you in a separate section and you can allegedly only take those bucks but last year a lot of people did not. You can do samples, sandwiches, etc because you are considered a vendor. We did sandwiches last year but that was a little much so we are not doing buns because it was a pain in the buns
We are vending again though so it should be good. I would recommend it if you have the means to do it.