What we figured out and did last year is wear some type like nike dry fit compression shorts under everything, we just tucked crushed water bottles/flasks/ziploc bags full of liqour under your nuts and just bought soft drinks. Beer was like 8 or 9$. We got away with bringing in a backpack and we put food and drinks in a beach towel and when you walk just have the bag open and the towel(s) in your hand, walked right on through.
Last year a cop was literally throwing out ziplock bags full of pills, white powders, and weed out of this dudes backpack and into the trash.
This. A guy with us got "randomly" seached and they just threw it out. "Random" pretty much meant if you dressed like you had pot on you, you were getting searched.
ETA: Also bring a camelbak of some sort, comes in clutch
This post was edited on 5/8 at 1:19 pm