So now you have damage to the bike, minor, but if its a custom colour its going to be harder than a standard colour to match. Check with where you got the bike sprayed & where you took the bike to get it checked & get quotes for respraying the forks. That would be two quotes.
Be prepard to have the whole frame done. Resprays themselves are cheap enough, its the time taken in stripping & rebuilding the actual bike that'll push up any cost.
Does it match roughly the height of the wheel trim which came of the car. Can you by any chance get back to where it happenned & see if the wheel trim is lying around still?
Photograph the damage, using a tape measure to which you have taped a small object, whose size cannot be denied. That last part I found out 3 years into mine.
See
http://www.cyclechat.net/threads/incidents-and-outcomes.67755/#post-1260853