Varies widely. In Toyota’s you call via the SOS button, have your VIN and they can do it. There are also other direct ways like pulling the Mayday fuse to disconnect the “Data Connection Module” (DCM) but that takes the microphone with it.
Some older vehicles that have 3G radios might not have been disconnected explicitly but are as good as dead because 3G as they knew it is gone.
It does not report via Android Auto since these vehicles have their own cellular radios, but not to say Google has its own metrics.
Your best bet is looking for a car/make-specific forum or subreddit and see if anyone’s asked the questions before while ignoring the “nothing to hide, you have a phone lol” clowns.