There is an easy fix, a 3m scotchgard shield.
You can buy onlie from
http://www.invisiblemask.com/site.html
2007 HONDA CIVIC SEDAN: REAR BUMPER (luggage loading area)
Part Number: HON00406RB
Our Price: $24.16
I bought one myself and it was real easy to install. Just watch their online movies.
Or you can get a window tint place to install for you.