I was born with a deviated septum, so I can’t smell much of anything, but cigarette is one thing I can smell… And I can confirm everything in your post.
My dad used to smoke. A lot. I once had to borrow his car for a week or so and couldn’t even drive it without flooding it with febreze and opening all the windows.
I used to have a co-worker who smoked so much that I (and others with more sensitive schnozzes) could tell if he’d been in a room in the past hour or more.
Even if you don’t care about your own health, you shouldn’t smoke for the sake of those around you.
My eldest brother had asthma, so my parents were generally careful not to smoke around us. They had a dedicated room in the house for smoking so that the rest of the house would get less contaminated. Fortunately, this meant that they didn’t generally smoke in the car while driving us around. Also, my dad worked and/or commuted thirteen hours a day so I was mostly around my mom, who smoked a lot less.
The car borrowing I mentioned was years after my brother had moved across the country when my dad drove his car almost exclusively alone, so at least no one else (who wasn’t borrowing the car) was engulfed.
I’m sorry you had to suffer through that.