They did put it in one of those "we care" bags. That wasn't the bag that saved the day. It was the fatquartershop's bag that saved the fabric.
BTW every time I get a clear plastic bag from the post office with that lame saying on it... I LOL. Whatever genius came up with the retooling of the damaged mail bags deserves their ridiculously high pension. I appreciate their sense of humor.
In the olden times, of fours years ago or so, I would get a plastic bag with a letter in it. It wasn't a personalized letter and took about four paragraphs to say "We messed up your mail, man. So sorry." I think I prefer "We care." and "We deliver for you."