I live in Michigan and I drive a standard and all too common Pearl Black Pontiac G6, but she is a beauty and I wash it touchless and no brushes whatsoever.. but the other day at my almost daily trip to Walmart someone leaving pushed a cart into it and while there's no bends or dents from it, i have one single horizontal scratch that travels from taillight to driver door handle and from having detailed cars and boats for the past 6 years you could imagine staring at this all day is driving me INSANE. But Im not sure how I should go about removing it.. or atleast knocking it down a bit until I can sand in spring. My SHED-like 1 car garage has no heat but I do manage to perform my weekly tasks on it. I'm curious as to what I can or should do for this. Maybe rubbing it out by hand with a heavy cut cleaning compound? Or a swirl removing glaze? Or would that be a fail, due to the frigid temps.? What can I do to fix this