Turns out some random dudes I met at the concert (I'm very friendly) turned me on to the fact that if you went by the tour bus after the show, sometimes band members go and sign autographs for people who don't have backstage passes. I took their advice, and it sure did pay off. You never know!
[EDIT]: Just grabbed a snap of the record.

Bermie signed the back, and Ruben signed the plastic sleeve I keep the record in. Enjoy! [/EDIT]