Flutterby™! : My you're being followed by an Air Tag

My "you're being followed by an Air Tag / Tile" tracker has alerted twice recently, and, having found no trackers on any of my stuff, I think that somebody who I walk by on Mountain View Ave also spends time at Work Petaluma, and the same tag showing up in those two places set off the warning...

Now to figure out who's it is and how to use this leaked information...