As stated
before, most cops do what the City, State, and Federal government
require them to do. Tag lights and turn signals might not seem
like a big deal, but they are covered under state law. They also
give an officer a chance to see if a driver is under the influence of
drugs or alcohol, and to check for warrants.
Just
remember Oklahoma Trooper Charlie Hanger stopped a vehicle on April
19, 1995 for a simple tag violation. He ended up
arresting the driver, who was later identified after a warrant was
issued as Timothy McVeigh (Alfred P. Murrah Building/The Oklahoma
Bomber).