Here's the story:
When I first got there, I found a table downstairs and waited for
the others. Then a waitress asked if I was 25. I told them I wasn't
but I was waiting for 4 friends who were at least 25 - she left to
"check with her supervisor" and but returned to tell me that they
couldn't make a concession.
While waiting outside, I was told that av and SevenEleven were
already upstairs. I went upstairs through the backdoor and met
them. As I was recounting my story to them, another waitress must
have overheard. When I turned to look at the drinks that were
available, she asked if I was 25. I told her, "I'm definitely
25."
Neither of them asked for my ID. 
