My first reaction was along the lines of "What an idiot", but then I started to think that the woman has a point. (Other than claiming that she faints when she passes a deli counter.)
For example, I have heard two people in two separate conversations complain about driving past a bus stop and being bothered by smoke from people standing at the stop. When told that their car is spewing a lot more harmful fumes than come from a cigarette they're like, Everyone drives - what's the problem with that?
Or this one: Residents in my condo building complain about smelling smoke from people standing outside - even when the smokers are far enough away that no smoke gets in their units, just a faint smell - and so we've enacted a property by-law to keep people from smoking anywhere near the building. But residents can still control what they do in their own units, so they've just started smoking indoors - and the whole building shares air so we're brething in more smoke now.
The by-law is shooting ourselves in the foot, but the anti-smoking contingent doesn't care because, let's face it, the anti-smoking movement is partly about punishing people for doing something we don't like.
I don't like smoking either, and I hate the smell. I even dislike being on an elevator after a stinky smoker has been on. But there has to be a limit on how much we clamp down on smokers. Make it illegal to smoke in cars with kids, sure, but can't we let people smoke on the street?