Have you tried to polish it out? I would try to a wash, clay, polish or compound. Try it by hand with a MF applicatior for compound and foam applicators for polish/ sealant. You might need a DA polisher if by hand doesn't work.
If that doesn't work then you might need to try a wet sand with 3000 or 2500 and then polish the sanding marks, a DA polisher would be preferable.
If you want the best paint protection for your D look into Cquartz Finest and Opticoat, these are permanent nano coatings, unlike waxes and sealants they do not come off unless machine compounded.
Also get front and rear mud flaps, that should help out.
Last edited by inyadreems; 01-13-2014 at 10:22 AM.