How to ruin my soon to be ex boyfriends Life??? Here is the short back story...?

I was feeling sick and cramping at work so I called my bf to pick me up. He came with his buddy. He stopped at a gas station and when they got back in the car he turned the music down and turned the heat way up and I asked if he could open my window and he didn't, he and his buddy began farting and burping at least 25 they farted with the heat up while I was crying and he didn't even care. That happened last week, I haven't answered any of his calls or txt since then. He left me a message calling be a stuck up snob and I cant take a joke. How can I get back at him? I want him to cry.