ULPT: Sick of smokers in drive-thrus

Hi, I’m not sure if it’s even legal or not but lately have been noticing an exorbitant amount of people smoking in drive-thrus near me. I live in Michigan (mentioning for the sake of state laws/ordinances) and know that it’s illegal to smoke indoors except a handful of “designated” locations but this seems to be a gray-area as far as I can tell. Yesterday was the last straw for me to post this though, I was in a pharmacy (!!!!) drive-thru with my windows rolled down (for me and for the dogs) and someone behind me smoked cigarettes the whole time, of course blowing directly into and around my car while we waited. There were probably 5 cars in front of us so it was a long wait, I even tried to “subtly” hint by moving forward and waiting until they moved and then inching forward a bit more to get away from them, but they didn’t get it and kept moving up every time I did. I have several health conditions that are negatively affected by cigarette smoke, already had a headache at the time, not exactly thrilled about my dogs’ exposure to the smoke as I don’t think it’s very fair to them—or the other people waiting or dealing with the smoke/smoker in the drive-thru, for that matter—and truthfully was really just not in the mood for this shit, not that I am ever keen on this but didn’t want to potentially cause a big scene with whoever the offender was either. I understand that we all have life stressors and have different methods of dealing with them, but is there some kind of passive-aggressive-but-not-too-aggressive solution(s) that I can employ to quietly shut this down when it happens? It can be as ethical or unethical (or annoying/bothersome) as you like, but preferably not escalating the situation if you can help it. And before people come after me for being a “snowflake” and tell me to just roll my windows up, save it because that’s not the point of what I’m getting at here. Thanks everyone!