Air Tag beeps in car when someone else is driving it.

Auto theft has become too common in our neighborhood. My wife and I decied to put air tags in our cars so that if they were ever stolen we would be able to know where they are. Got some air tags and I linked them with my account.

Now, whenever my wife drives her car the air tag beeps while she is driving and gets alerts on her phone.

So my questions: how do we stop the beeping for her? And more so, if someone were to steal our car, they would hear the beeping and get alerts on their phone that there was an air tag in the car....in which one would assume that if it was beeping they could just find it and remove it.

What am I missing here???