I agree with 'no cops', Jax...she'll turn her anger on you if she finds out. I'm sure her husband wouldn't mind for a while...but she'd probably retaliate somehow if she has anger issues....
I wish I had a helpful suggestion...that is one tough situation. I've had neighbors from h_ll before so I feel your pain. Hang in there...maybe she'll wear herself out.

I'll send some exhausting thoughts her way so maybe you can get some sleep.
Stacy