Oof. I forgot about a Thai crispy whole fried fish in a carryout container in the back seat when I parked in a satellite lot at Dulles for a week one August. I had to open all of the windows and go to a bar in the terminal for a couple of hours before it was even remotely possible to sit in the car.
I once came home to a kitchen fridge seemingly running fine, only to be greeted with a blast of hot air when I opened the door. This was nearly 20 years ago, and the smell of the leftover lobster claws I had in there remains a topic of conversation to this day.