I know not to try and polish hot chrome, but I accidentally dropped a rag with Mother's chrome polish directly onto the hot pipes. I now have a brownish spot on the pipes, that has ridges in it. I tried to let the bike cool down and use the mother's on it again, but it is not doing a very effective job (It has helped a little). Can I buff it out with something, or am I screwed? Is there anything else I could be using?