I'm sorry, I have no initial advice, but I have to say that I loved your title. I was picturing little pies with legs scampering about and piling into a volkswagen, clown car style. Made me laugh.
OK now that I got that out of the way, I think you did exactly what you needed to do. DH has a very wise inclination.... do exactly nothing, and glad you ate the pies. Hopefully, you enjoyed them.
It will drive her nuts that you aren't calling her, and her issues will come forth soon enough. She'll do something else to try and get your attention again. As far as I would be concerned, unless something is communicated directly, I would be thinking there is nothing wrong and it was very nice of her to send me some pie