Why be nice about it?
When I was putting my fifty foot tower up for my amateur radio antenna's -- ON MY OWN PROPERTY -- the neighbor who lived west of me complained vehemently to the local village constantly while trying to stop me.
Problem for her was, written in the Village ordinances and by-laws was the fact that while other radio tower structures were severely limited, amateur radio was not. (That exclusion was by design, to comply with FCC Part 95.)
So when she realized she was getting nowhere with the village - who had no option other than to approve my structure - she started openly complaining to neighbors, then my wife, then me.
One day while we're putting the antenna's on top of the tower, she crossed over onto my property and said very loudly "I don't want to have to look at that thing every time I look out my kitchen window!" So I told her "then keep you kitchen window blinds closed, problem solved" followed by an abrupt "get off my property now."
Her constant nagging and complaining went on for about a year and I kept ignoring it. One day she called the police because I was "interfering with her computer speakers." The officer visited her house, then came over to attempt to tell me to stop what I was doing. I told him I'm federally licensed to do what I'm doing and he wasn't legally authorized to tell me anything pertaining to my radio communications.
Officer departed, coming back about an hour later with the same complaint, informing me if he had to come back again, he'd arrest me for "disturbing the peace." I informed him should he come back he'd best bring his watch commander, whom I know personally.
Sure enough, another hour goes by and Sheriff' Deputy is at my door, this time with the watch commander. So I opened my door, looked the watch commander in the eye and said "So, what's up Robb? What brings you here? Arresting me?"
He responded "No" followed by ordering the Sheriff's Deputy to apologize for saying he'd arrest me on a trumped up bullshit charge. They then had to go to the complaining neighbor's house and inform her there was nothing they could do, "it's out of their jurisdiction."
That was about a year ago. Shortly after that incident I painted a satellite dish bright pink and mounted it on my tower, pointing straight at her kitchen window.
Now, there was nothing connected to that satellite dish at all. Yet somehow, "everything" in her house was now getting interference.
I left that dish on my tower pointed straight at her window until the day she moved out about a month ago now.
That dish was up for about a year. It had the intended effect and my new neighbors are much nicer. Zero complaints about interference and frankly the husband thinks my hobby is "cool."
Dude, you should have referenced the FCC required “interference disclamer” on her speakers.
I know a thing or five about radio transmitters, and if you operate within the parameters set out by the FCC (and I am quite sure after reading your story you do), then there was no way you caused that busybody any interference. But you already knew that.
I’d have done the same things, and enjoyed it at least much as you did. The pink dish was great. Most people use those for chips and dip. I’d have probably done more to encourage her to think you were burning her brain (?) out.