I actually said similar words to my sister about a week ago. I said, "If these people had been alive during WWII, they would have been running out into the streets when London was being bombed." That was in regard to that restaurant that was packed on Mother's Day.
This woman? If she had done that to me, I'm not sure I would have restrained myself. I have already been spit upon and had I later developed the virus I wouldn't even have known who may have given it to me. I think, this time around I might just consider decking the person, and then when the police were called, I'd at least have their name for future reference, unlike that poor lady that worked the ticket office in London.