Step 1 - Require automakers to install GPS tracking systems on all new vehicles.
Step 2 - Pass a law requiring all subsequent data to be turned over to the Federal Government to charge a per-mile tax.
Step 3 - Give access to that data to political hacks like Lois Lerner so that they can use the media to ream the next GOP Presidential Hopeful whose car just happens to turn up in the parking lot of a local brothel.
Thread winner. No further comments needed.