LMAO. I sense a note of sarcasm so I won't even asnwer your question regarding whether it was nice of her. But still, lol.
When I moved to another state to go to grad school I packed a car with some of my belongings, and my parents were coming down two days later with a uhaul full of furniture and my other stuff. I had everything carefully packed. I did not pack things I did not think I would need.
Mom, however, did.
When they arrived at my new apartment they opened the UHaul and it was PACKED TIGHT with my belongings, including said wrapping paper drawings, girl scout uniforms, etc etc etc. I guess mom was ready to purge her closets of my junk. We laugh about it now, and I give her a hard time. I see where she was coming from, but at the time it was like "gee, ma, do you want me to even come back home, ever?" (snicker - I also know the answer to *that* question, lol).
Anyway - I sympathize with you!