Okay you know the scene where Michael's in Mexico talking to some dude and no one understood what the fuck was going on?
I'm pretty sure he was talking to a Coyote. Coyotes are people who smuggle people across the border from Mexico to America (Thank you Arizona for giving me extensive knowledge on this). The guy wrote something on a paper and made some kind of remark about it being the first time he's ever done it "this way" because it's "usually reversed."
I totally think Bar Guy was a coyote and was telling Michael how to get from Joliet, Illinois to Mexico while avoiding all cops, check-points, minute men, border patrol, and anyone else they don't want to get caught by.
Just had to type this out before I forgot to mention it tomorrow.