I had the same experience when my friend hid one (with my knowledge) in my car. It took me a few days to cotton on that the beeping was the AirTag and not my ca

I had the same experience when my friend hid one (with my knowledge) in my car. It took me a few days to cotton on that the beeping was the AirTag and not my car making squeaking noises of some sort. And I knew that the AirTag was there. I imagine someone unaware could fail to notice it for months.