No. CPS is not going to do anything. She is your mother, even what she said about needing pampers was not slander. While ineffective on her part, she was probably sick of you and your brother's actions and attitudes and pushed beyond her sense of reason. I agree, you need to be made responsible (both of you) for paying your mom back. Chores around the house that are hard, to help you learn some respect. You are lucky the restaurant manager did not kick you guys out, and that the person you hit with ketchup did not file a formal complaint.
Let it go,
Phoebe Grace 6-22-11; 8# 1oz, 21" long/19# 12oz and 30.5" long at 1 year; 23# and 33.5" at 18 months! And oh my! Grew 3" in 3 months! 36.5" at 21 months... long and lean like her mamma was growing up.
Me & Geoff, 39; DD Phoebe, our June Bug