I mean, you can wait in Finns all afternoon if you want, the Stay & Scream section doesn't "open" per se. The bigger problem is when they close--by 4:00, usually start limited access so there is a line (sometimes huge) to get in. If you are already in the bar, they come around and scan your ticket, give you a wristband. Inside the bar gets busy very quickly, I've seen outside busy but never body to body.