Sounds like my stepmother; people like that are anxious/insecure, have to "control" their surroundings and people in it, are pretty rigid and have to have things the way they and their mind have set them up/imagine them to be. Lots of rules.

It's not about you, it's about them. If you are on their turf and they're in charge, just do things their way for that period of time. Remember who you are and what you like and how you want to run your life and just feel sorry for them, that they are held captive by their lives instead of free to live them.