According to a snitch:
-Zac was there with 3 guys and 1 girl (not V) for supposedly 2.5 hours.
-Zac and party declined a private room (which MM tries to make an ego thing but w/e, we know Z's just chill).
-Zac was totally friendly with fans who approached him.
-Zac and party consumed Cherry Salome Sour cocktails, Belvedere and soda, and finished off with rounds of SKYY Vodka shots.
eta (8/23): hey the bartender who helped zac just posted this on ontd:
"I was serving Zac at the opus that night, and I just have to say... I have no idea how in the fuck anyone found out all that information, cause I didn't say a fucking word to anyone!
He was the sweetest most polite dude, and a good tipper as well, p.s.:
so there you have it... i completely take back what i said, the bartender (at least) can be trusted :)