Vehicle security for long road trip

That might be a good thing, can the phone locate where it is on the car ?

Detectify or tracker Detect for Android can also alert you to a nearby air tag
The problem with the Air Tag is that if the thief has an Iphone he will receive an alert saying that he is being tracked.

That was a measure put in place by Apple to prevent people from being unknowingly tracked.

Detectify has a field meter which I suppose you could use to find the tag or tracker with some practice