ok, so some gigantic truck merged into my drivers door. there isn't much damage, but the most obviouse are two rather large tire marks. they won't just rub off, but my gramps, who helps me a lot with my car, just walked up with some brake fluid and a cloth, and rubbed it on. i freaked, ran to get a towel, and washed it off the find that the tire mark was gone. will the break fluid hurt my clearcoat, or is it ok as long as i get it off quickly? it just goes against my better judgement to put brake fluid on my paint.