It seemed like they were going to hire me as soon as I got there, and just wanted to make sure there were no schedule conflicts. I never got any real questions. It was more or less "are you willing to do this?"

Wear boots. Don't overdress. You'll get the job. They will take anybody. Don't stress out about it too much. They might try not to give a flexible schedule but just get the job first and then talk about scheduling after that