Yes, asking them to allow her through was the lesser of two evils, but it was close. She quietly informed them that she had to visit the bathroom, and they allowed her to pass.
She quickly made her way to the toilet, about to burst. She should have known better than to ignore her initial urge to pee; doing so had gotten her into trouble so many times. Luckily for her, the bathrooms weren’t very far away, nor were they occupied. So she made it to the toilet in time, even if her panties were slightly damp from a small spurt of urine she’d released on the way there. If she’d had to wait any longer for the toilet, she didn’t think she would have been able to avoid a complete accident.