Oh, I'm all in favour of "harsh consequence" for people for making bad smells. I'd start with drivers with engines that belch fumes and particulates because they are defective or out-of-adjustment.
We should aalso inflict "consequence" on the SUV drivers who clog the roads in the town I live in; I have medically-compromised lungs, so the stink of diesel fumes isn't just an annoyance for me.
Let's also punish people who use wood-fired stoves in built-up areas. I live in a smoke-controlled zone, but for some reason builders are allowed to install these stoves in new-build homes, provided the model of stove meets certain standards. Well, that's cool; if the stove itself is safe, it must be the owner, operating it incorrectly. So let's give them some consequence too.
These offences aren't much like smoking a ciggie, which last about 7 minutes; the amount of fumes produced by a ICE per minute is much greater than that produced by a smoker, and the ICE generally runs for much longer than 7 minutes. Wood-fired stoves are normally run continuously for several hours, and not for heat; they are used to generate a nostalgic and aesthetic effect. If that harms others, or even if it just creates a bad smell, let's be harsh.
I'm also keen to impose "harsh consequence" on dog owners who allow their dog to deposit smelly stuff at my front gate, and who then fail to pick up that shit and take it away with them. This is a particular problem if you get a 3-week cold snap; 3 weeks-worth of dogshit all thaws at the same time, and the smell of dogshit coming out of deep-freeze pervades entire neighbourhoods. And of course, pot-smoke doesn't contain toxoplasmosis.