I'm weak as shit, but I'm near Ann Arbor. I just started lifting again after almost 25 years.
I went to a couple of meets way back then. They're fun, and people are very supportive. Prepare for a LONG day. And don't do anything - especially in regard to eating - that you wouldn't do any other day. In other words, don't eat the first Wendy'd frosty you've eaten in a year on the way to the meet, unless you want to shit your onesie.
Don't get aggressive with your weights. Plan on lift 1 being something you *know* you can nail, 2 being something you've done before, and 3 maybe being a small stretch. Don't get discouraged if you get red lighted. Butterflies and jitters alone can make you blow a lift. You are only competing against yourself - even if Ed Coan were there, you're probably not going to break any of his records on your first meet anyway, know what I mean?