What a nice story! Sometimes, people are really wonderful. I hope your hand is ok now.
A few years ago, I was in Bar Harbor, Maine on vacation. I had been having some trouble with my right knee being a bit weak. Coming out of a store I stepped down onto the sidewalk, and my right knee collapsed under me, making me fall onto my left knee and scraping it.
5 or 6 people rushed over, helped me up, and made sure I was ok. I was basically fine, although I had to go to the nearest drugstore to get bandaids for my left knee, which was bleeding a bit.
When those people came over, I knew for sure I wasn't in New York anymore. (I'm a New Yorker, and proud of it, but people here can be cold and clueless sometimes).