Go on a track day and end up in the kitty litter, then you'll know what wheel scratching is like!
Personally, I wouldn't even waste the energy in bending down to put nail varnish on it, it's happened, it sucks, oh well.
It will happen again, and it will be no more or less annoying.
My Fiancée caught my front bumper lip on a curb in a car park once and was in bits about it, she was more than shocked when I came out with "It's fibreglass and paint, it doesn't matter".
There's much bigger things going on to worry about.