If I were to get pulled over by the police but I didn't have anything on me but they smell something like marijuana and they ask if they can search my car or they ask me to step out of the car, do I have to? Can I refuse their request and lock myself in the car and tell them to get a warrant? What is the best way to get out of a sticky situation like that? Please reply to my question because it will answer a lot of questions, thanks!