I'm going to tell my dad that he overreacted when he called the cops when I wasn't picking up my phone. There was no need for that.
Why do you want to tell him that?
Because I think my mom will have a heart attack if they don't know that they overreacted
It's bad to call the cops on someone for something petty like not answering a phone, but your parents were clearly worried about you.  You should understand their concern, and at least let them know when you won't be available to answer their calls.
I shouldn't have pick up the phone at all. I only wanted them to worry since they didn't like my taste in music.
Maybe you should be more available for them. They were worried and even if they did overreact it was out of love.