All of our customers who live near military installations have odd interference like yours. Some only occasionally, others same time each day. Just part of the territory.

The ceiling fan in my home office worked flawlessly for years, then it started operating by itself, including the light turning on and off each night by itself. I knew a neighbor must have installed a fan on the same codeset as mine. But since I was there first, that codeset was MINE! After dark, each night for a few nights, I turned my light on an off... over and over repeatedly. It only took a few nights for my problem to stop.

Then there's our office. We're in a building with a high end cabinet shop. At least once a week, one of the table saws or dust collectors turns itself on. Always at night, always when there's nobody in the shop.

And my dog, he plays with an invisible person. That one really freaks me out.