You err. In the long standing tradition of the SCOTUS's treasonous failure to protect the people's rights against the government's constant full court press to enslave us they have decided that during a traffic stop the cop (in the name of cop safety) can control passengers. They can make you get out the car completely absent of suspicion of a crime.
https://supreme.justia.com/cases/federal/us/519/408/case.html
"In this case we consider whether the rule of Pennsylvania v. Mimms, 434 U. S. 106 (1977) (per curiam), that a police officer may as a matter of course order the driver of a lawfully stopped car to exit his vehicle, extends to passengers as well. We hold that it does."