I've been yelled at for rolling the window down. "What are you doing??!! We love the smell of that flavor, roll it back up PLEASE!!!
and there are other flavors where they roll the window down to get extra air.
I always crack the window, out of habit, and let them dictate whether or not to roll it down more or to close it.
I don't mind letting them choose for me.
They choose my vaping over my smoking... and sometimes the choose my vaping over my not vaping. Gotta love it.