I've noticed this happening with my airtag lately (on my car keys tied with the air tag paired to my phone)...comes to work with me. Sits in my coat on my desk 2-3 feet away from my phone the entire day. When I pick my coat up at the end of the day to walk out (even with my phone unlocked and less than a foot away in advance - was testing today) it starts chirping away, going on and on, day after day after day. No warning on my phone so not quite sure what its on about. Since its a quiet office everyone around me notices.I have used Tile in the past, but switched to AirTags a few months ago. Tracking works fine, but it makes a chirping sound every time I move the wallet, keys or laptop quickly. This never happened with Tile.
While its found my keys a couple of times in the past, its so annoying now, I'm weighing taking out the batt and throwing it in the drawer to gather dust. This started recently so one of their updates for their airtags (trying to protect us all) has made it annoying to use for the use case it was designed for. I definitely want the capability but it can't be a pain or embarrassment to use.