GGGRRRRR That's sooooo aggravating!!!
Take it back to the dealership and see if they can help you... if not, get some touch up paint, paint and rub off with paper towels (soft ones) repeatedly until you can't see the scratch anymore (took me about 25 coats). That is what I did and you wouldn't even notice it unless you were looking for it and very closely. Still, it's sooo aggravating! It blows my mind that there are grown people out there who think they have the right to do that to other people's property.
I'm so sorry that happened to you!!
I got my car last Jan and in March I went to a casino in CT. Thousands of cars in the parking lot and MY car gets keyed on the drivers side alllllll the way down the side. My car was not brand new but it was to me! It's a 2007 fully loaded V6 Accord, nicest car Ive ever had! I hate people too!!!