Chillll call the shop that painted it. I went to paint/body school for a while, and my instructor whos painted cars for 30 odd years told me 99% of shops keep usually a quart or so of custom mix paints, for incidents like this. Chances are, theres some left over, enough to paint a door or hood, or in your case your bumper. Glad to hear your alright though.
It should be that easy.. but the guy who painted it doesn't have the shop anymore.. Car was so clean, but he'll find something bigger and better for his next project!..
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-Darren
03 Cobra Vert: Whipple, Lt's, H-pipe, SRA, 325 MT Dr's, more bolt-on's - Weekend Beater
88 Mustang Coupe: Gutted - Project