Depends on night, when we go in June Bash is going until 3 am. We have been served at Bash after 3 am...but you can tell the bartenders want to get going, so we don’t ask anymore after the DJ stops. room service is an option. Or have a couple bottles in your room. So..to answer your question...no...not many options if you don’t want to go back to your room. You can always give a bartender a bottle to keep on ice at Bash and then get it when the DJ stops.
Take some large mugs and have the bartender fill them up on the way out, but tell them to keep the ice in a separate mug. and have fun