never said you were smoking in the car.
ill say it yet again...
if marijuana possession is legal (as in after 19 passes) the smell of fresh marijuana is not probable cause to believe one is breaking the law.
how do you not understand probable cause?
the fact that he can smell it will lead him to check regardless as only certain amounts are legal and he will be sure to make sure you are within limits. Why do you think they just do not stop with looking at your rec... they make sure you are within limits. Also LE will use the smell to make sure you were not smoking it. A smell is a smell is a smell. Especially when the federal government is handing out money for marijuana busts.
If it was fully decriminalized... then he would not have probable cause. and only then.