Can I be charged with drug possession if I was just a passenger in the car where the drug paraphernalia was found?

Depending on the case specifics, I wouldn’t be surprised if the District Attorney decided not to file charges. In any event, assuming charges have been filed, speak to a criminal defense attorney to review your case. And don’t be surprised if the police reports do not give the same version of the situation as you recall. Officers know how to write reports and testify so as to support an otherwise invalid search and/or arrest. Make sure you do not make any statements to the cops (from now on) without an attorney present.