During the camp fire scene, Cliff Curtis said the beans were particularly disgusting. There was a "gross" layer of salty water on top, so he faked eating them.
Andrés: Can I get my big brother Oscar and his beautiful bride Jessica up here for their first dance as husband and wife? Give them some love.
Travis breaks into a parked car using a crowbar to smash the window, and then opens the door using the outside handle. It's entirely possible the car wasn't locked at all and he just didn't think to check before breaking the window.