Most likely its just the bumper cover. You can pull it off easy enough and just check but I doubt you banged anything up going that slow. The good news is that new edge bumper covers are cheap. The bad news is paint is not.
2000 Mustang GT Steeda build #48. Bolt ons, suspension, Novi 2000.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.