What do I do in a situation like this?

I'm in a bathroom stall from my mobile at the mall. My friends are down at the food court. And I'm stuck in here because there's two weirdos using the sinks. They are men who are making growling noises repeatedly washing their hands and tearing paper towels out of the dispensers. They're yelling and obnoxious. They are both black.(If that matters) I'm too scared to leave and friends are probably waiting.