Ultrasonic pest repellent or weaponized sound?

Living in the heights area…three townhomes in a row, across from a cluster of six with a couple homes mixed in. Somewhere in all that mess, someone plugged in one of those ultrasonic pest repellers… and I can HEAR it.

It’s like a disorganized jumble of high-pitched chaos, cranked to a microscopic level, somehow screeching from inside my eardrums!! Open my balcony door: REEEEEEEE!!!!! Crack a window: REEEeeEEeEEE!.!.!.! 12 random seconds of silence and then: reEeEeEeEeREEE!!!!!!REEEEEEEEEEEEEEEEE!!!!!!!!

My dogs are also losing their minds. Every time we’re outside, their ears snap up like they’re reliving a Vietnam flashback.

So anyways, I have questions: How do I figure out which neighbor is blasting us with their rodent death ray? If I find them and they refuse to stop, do I call non-emergency? 311? Ghostbusters? Are humans even supposed to hear these, or did I just unlock a cursed Fallout-style perk?

If you’ve ever lived next to an ultrasonic squirrel warlord, please tell me how this ends.