My Daughter drove through a puddle on a parking garage. It looks like concrete paint or concrete sealer or grey slurry texture paint. She got it good. Submerging the aluminum wheel, tire, splashing fenderwells, plus splatters along lower doors and rockers. I have tried wd-40, goof off, cleaner wax to no avail. This is no bug and tar job. Any help will be much appreciated.