I had this on my last car (2012). I think the best method is prevention. Don't load your hands with cream, don't ride the buttons and keep your nails trimmed. Once the damage is done, it's hard to repair in an aesthetically pleasing way. I carefully touched it up with semi gloss black paint and a fine brush but, it still looked different on close inspection.
2014 Premium GT, SGM, Brembo, Auto, Tech, Comfort, etc. GT500s, Steeda UCA, VMP auto N/A tune. 100 shot nitrous on BBR tune. Best e/t 11.38 at 120.85
2012 Premium GT, Candy Red, Brembo package, 3.73, MT82, Comfort, Tech, et al. Procal tune, Roush UCA, UMI poly LCA, GT500s, Steeda red bracket, Hoosier 28x10x16 bias drags. Best e/t 11.91 at 115.23 RIP