and honestly that's on you for not canceling after month two when you clearly didn't need it. I get it though, Seattle makes you think you need a car setup just to exist there. Everyone pays the dumb tax when they first move to a new city. Next time just sell the spot on Craigslist or something, people are always desperate for parking. $900 for spider webs is a rough lesson but at least you learned it early.

That 4.7 milligauss reading is about ten times what you'd see from a typical household appliance, so it's not nothing, but the fact it dropped to zero after 40 seconds and never came back tells me it wasn't a power line. Buried lines don't switch off. More likely you caught a brief surge from something mundane like a neighbor's garage door opener or a faulty streetlight transformer that happened to fix itself. The orange light was probably a drone with a bright LED, and the dog was barking at it, not at your invisible energy field. If you want to test it properly, walk the same spot with your phone's compass app and see if it goes haywire, because that cheap meter will pick up your own body's static charge if you're wearing synthetic clothes.