Right, I'm going to install a tracking device on my car and give the login password to the local police department. I'll just say "If I report my car stolen, please log in with this password and track it's whereabouts, and at your convenience go retrieve it and impound it until I can reclaim it". I'm sure they'll be glad to write all that down, and file it in a file cabinet marked "crazies".
No, you do what the car rental companies do. You sign up for a monitoring service, like OnStar, who will contact the police for you and give them the relevant information.
