This year will be my 5th Roo and here's what you should keep in mind for security. When you first get there in your car, you will be asked (by the aforementioned college kids) if you have any glass bottles or fireworks. Just say no to anything, although they search cars randomly so it's best to just bring in cans. And Nitrous tanks are a big no-no, they generally aren't looking for anything else.
Getting into Centeroo is a little different cuz they search bags and don't alllow outside beverages, but I've always stuffed a few in my pockets and been fine.
