Most people, probably the vast majority are mostly interested in how they come across to others. I wouldn't worry that much about it. Worst case scenario if you do bump into him he most likely forgot the incident. You are a good caring person.
BTW Your post reminded me of the time I did a one night stand with a man I met at a party. Then a couple years later I met him in a Jewish consumer group I belong to. The reaction by both of us was cordial on both sides. What a relief.