You can go to an automotive auto body and paint supplier. They can scan the paint and then mix you some touchup paint. At least you can fix what is scratched. If it is the edge of that grille digging in, you can make a cushion out of a piece of rubber gasket material and attach it to the metal edge so it will not keep digging into the surface. That would at least stop the damage from getting worse from the vibrations of driving. Just a suggestion. If its digging into plastic it may go deeper than your paint.