After you get it fixed, keep it waxed like it's a new Corvette. There are waxes available with Teflon in it. Very tough protection and will seal small scratches so the dirt will not get as ugly as quick.
Eagle One , is available at Wal-Mart. It's great, goes on easy and comes off easy too.
Tom in KY, with waxed and extraordinarily shiny fingernails.