Well, an actual food truck is original.
Headpat. He wins.
"Juvenile"? Maybe Jojo juvenile.
They're standing in line, so no problems at all.
Most people get cranky when they get hungry. Or more generally, being uncomfortable makes people cranky.
Nah, it's not insensitive to not assume. And in my impression he was more asking her if she wanted to go to that specific place rather than going together at all.