WWtOTD? Neighbor/noise/grass related

My neighbor has a lawn service that comes every 2-3 weeks at 6am on Fridays. She is elderly and not usually very coherent. The lawn company still comes out even during this time of year when there is nothing to cut.

The problem is this is waking my wife and baby.

I’m at work every. single. time. this happens. I’ve taken off on Fridays or worked from home on Fridays, but I always miss them.

My wife has gone out to talk to the lawn crew, but they pretty much just ignore her. The truck they drive is unmarked, so we don’t know which service they work for.

The elderly lady has a son(?) who comes check on her every afternoon, and he’s not interested in being any help or talking to me at all really.

Besides pics, what’s the OT’s next step? I’m guessing they’re breaking the sound ordinance (65db before 8am). Should the wife call the non-emergency number for local police? I’ve always been able to talk things out with neighbors before. I don’t want to make any enemies, but I don’t want the wife and baby to suffer. Any advice, oh wise OT?