The smell of cannabis in your car is a giveaway and provides the police officer with probable cause. There are several ways to eliminate the cannabis odor if you use the drug in your car. Air fresheners are the obvious option, but you could also eat aromatic foods such as Indian food in your car.
There are also odor absorbers such as activated charcoal and baking soda. One homemade mix of interest is a combination of white vinegar and vodka. Mix a cup of each with a cup of water to create a spra