Agree with Exarach. Could we get a better description (height, weight, race, hair color, distinguishing features (scars, tattoos, piercings, ect.)). You really should call the cops, though I'm sure you or your dad already has. This happened to me (although the damage was minimal). Learned then to take a pic or write down the plate number while you have em out of the car and boxed in.
non vigil justice
Seriously, hope the police find this chick and your dad gets his car fixed. Good luck.