Hard rock live Hollywood ga advice

Hey everyone I’m going to the Cage the Elephant concert this Thursday and I know they have a strict no line up policy I really want to get barricade but this is my first time at this venue so I’m wondering how it works Do they give out wristbands so you can come back later or do you just wait nearby until they let you line up If you’ve gotten barricade here before how early would you suggest arriving and should I come fully ready with snacks and water