Some retard scratched the plastic part of my rear bumper, from the rear wheel well area all the way to the corner, thick and deep, I don't think a touch up job would do. Can anyone recommend a reputable body shop in Boston / Brookline area to replace the plastic part (the part below the black stripe) of the rear bumper? Can the plastic part be replaced separate from the rest of the bumper? has anyone done this and know how much it should cost? Should I just go to the dealer? Any recommendation is much appreciated.