I’m going to assume that the poor woman has a bad case of irritable bowel syndrome. She is just going to have to get a porta-potty for her truck or something.
I’m guessing that’s what happened. Besides, she wouldn’t want to have happen to her, the thing that happened to the guy in episode 1 of Netflix “Chewin’ The Fat”, now would she? (At about 09:03 in the episode)