Similar experience
The same thing happened to me several years ago - however package was not delivered. New mother (a friend of my daughter) was most upset about not informing us of recent move. Told my daughter to tell new mom not to worry that I would make a new quilt - new mother's have more than enough to be concerned about. Eventually post office tracked down package and it was delivered. I got the best thank you note I ever received. And new mom even sent me flowers on the following Mother's Day. She more than made up for all the thank yous never written.