Awwww, that's so nice, Tracy!

It's a good thing you made the effort to shovel, even though it was painful for you. If they hadn't seen you out there, they may not have stopped and helped. So bravo to you!

You could write up a story for the local newspaper to publish about your "angels in disguise." Then perhaps they would see it and know how much you appreciate their good deed. Who knows? Maybe you will see them again after the next snowstorm!