Aerosolized Droplets?

Hi just had a question regarding air droplets. I was sitting in car with windows slightly rolled down enough to feel a breeze. While waiting, a guy walking 15 feet away from my car coughed into his hands and proceeded to walk past. I did not have enough time to react and I had taken my mask off and now wish I hadn't. I can't remember if I was upwind or downwind. I always wear my mask but just decided to take it off just this one time. What is the risk?
Aerosolized Droplets?
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