I have definitely noticed the smell....I can even still smell it in my car where I haven't smoked in nearly a month! It is funny, the longer I go without smoking, the further away from the smoker I can be and still smell it.
If you wanna get the smell out of your car, or other small space, you can always cut 2 oranges and 2 apples into quarters, put em on a plate, and leave them in the enclosed space over night. Usually pulls the smell right out.