Sorry to hear about the end of your night. Just a thought but maybe you and your son could go out and get the storage boxes for her, just to show that it doesn't have to be a battle. A little bit of validation that you understand she was upset. I don't know though, it could be pandering to her needs...
I think she was probably enjoying herself too much as a family, maybe getting too relaxed in the situation, and had to build that wall back up!
