Wow, that sucks! Happened to Frank Black several years ago in Philly. Also to Dinosaur Jr., which I wouldn't really care enough to know about, except it happened in lovely Long Island City, New York (where I live).
Sooo: The only tables were for VIP's, but I managed to snag a place in the balcony (In the first place I tried: "dat's my lady's spat" Don't condescend to me hipster boy; you weren't alive when Raw Power came out).
The Hell's Angels were there.
He did "I Wanna Be Your Dog" twice".
A roadie shoved someone who'd jumped the stage off into the mosh pit.