So I'm currently living in California (moved here for school), and my step-dad let me have his second car as my transportation until I can get on my feet. His name is on the Title, but mine is as well because this car was originally going to be given to me. I recently got pulled over in California driving this car, and the officer said I had to register my car here in California. I'm unsure what I am supposed to do because my step-dad still resides in another state where we bought the car and he still had true ownership of the car. Any advice?