Can you talk to your T about this and find out what your options are? It might be possible for you or maybe the T (with your permission) to contact the police and preempt this tactic.
Maybe you can report that
she's unstable, and has been threatening to call the police if she doesn't get a phone call from you. That can't be an appropriate way to use wellness checks. Maybe if you call them first and ask them to do a wellness check on HER it will make her think twice? Idk.
Another idea is to tell her that if she EVER calls the police on you like that, you will absolutely never call her again.
Also, wtf--I thought you lived in Canada where it's civilized. Do the police do that $#%^ up there also???