To be honest, this law is BS, but I personally can't stand smokers.
I work in a restaurant where I don't have a choice to stay in the non-smoking section. I've smoked probably 5 cigarettes since I was 18 and haven't lit one up in over a year (I get craving because of my situation, explained later). I have to suffer through smoke with my asthma and I can't stand it. In Illinois practically anywhere you can smoke, but its not fair to the non-smokers. Sure, I can walk away, but then where am I to go when there are smokers blocking my way? I have slight addictions and a bad cough from second-hand smoke and its ridiculous.
This propsed law though itself is preposterous, its a moving vehicle and unless there are under age kids in the car, let people smoke.