That's dumb. JA puts on a great live show and AIC are legends. Plus their singer now sounds exactly like Layne. You'd be foolish to leave after Coheed. At least stay for a few AIC songs and then bounce.
Haha, I was half kidding. I always say I'd bounce after the bands I go to see, but I usually stay for a bit after and see the next band or 2. I'd probably stay of Jane's Addiction, but probably not AIC.