Passport as an ID at a bar with a scanning machine?

I've been 18 since March but I don't have a driver's license or permit so I have been using my passport as valid ID to get into local bars (I live in New Orleans where 18 is the age to get into bars, not 21). It's worked fine at every bar I've been to but I'm going to one tomorrow night for a graduation party that uses an ID scanner apparently so that they can seed out people's fake licenses and whatnot. There is a barcode on the last page of my passport, but I wanted to know if that would work on this scanner? The picture clearly looks like me and my birthday is on there. I have health insurance cards to provide additional proof of my name. So I just wanted to know if my passport would scan at this bar?