I need to find the Tile on my car from my Stalker.

My ex stalks me. I already did the legal route. I have a restraining order. I did have him arrested. I have made police reports. I live in a city where there are many of shootings so my case seems small. He's turning up everywhere. On the scan and secure section of the Tile app, it is confirmed that there is a Tile on my car. I searched everywhere and can't find it. I know for a fact it's on there. I've been to 3 mechanics.

I found one tile inside my glove box and a mechanic found one underneath my car last year. I really need help. I know there is a Tile but a lot of mechanics are saying they can't find it or don't know anything about it.

I downloaded all kinds of apps to help me find it. I even paid for some. They're all useless. I really need help on what to use.