HELP! I screwed up my front bumper!

Okay, so I'm half asleep after a work meeting and I pull into the parking garage. The spot I was parking in is on a slight incline leading down into...THE WALL. So after the hideous sound, I get out and look at the damage. No dents or anything but tiny pock marks where the rough concrete dug in. So I got home and used touch up paint, and it looks okay, but in the light it looks like a bird sh*& red crap on the bumper. Anyone know a way to minimize this? I thought about some 1500-2000 grit sand paper but I didn't want to screw it up more. I know it's a truck and usually I can live with small things but this is driving me nuts. It's on the driver's side corner and it's an area about 3 inches by 5 inches. Any help would be appreciated!

 

I noticed a tiny scratch on my fender flare from the DINK that ran into my parked truck at WalMart. I took some rubbing compound and the scratch dissappeared.

try that man.

 

I think the problem is that since the bumper is plastic, the marks go past the paint. I may have to cut / sand the rough edges first and I was trying to figure out the best way to do it.

 

I guess some above mentioned sand paper & putty is it then man.