If I were the owner or manager of this shop, I would want to know if I had jerks for employees. I wouldn't want someone running my customers off.
I would talk with the owner of the shop and let him know what happened and how you don't want to use his shop anymore. It can only be a win-win.
They either talk to this guy and get his behavior corrected or fire him for harrassment. I feel sorry for the wife....I wouldn't be embarrassed. I would be angry.