Can't do anything. I mean you can't do anything with out alot of work. That is the sub frame. The car is a unibody but they put folds in the metal to give it strength. You just crushed one of them. It probably won't effect the car at all. If you scraped the paint off you may want to get a green scrubby or some light sand paper to scuff it up. You need to put some paint over it or some of that undercoating in a can they sale at auto zone.

I could give you a better answer with better pictures.