I'm going to call the police on a couple kissing
Why aren't you okay with them kissing?
They should not be doing this in public.
You can turn around and not watch or leave the area. It is a crime to waste police time over trivial matters that make you uncomfortable.
They are doing it publicly in the bathroom. It is disgusting.
Learn to ignore such things if they bother you so much. Kissing in public is not harmful to anyone so let them be.