My rear bumper had a little run in with a brick retaining wall. I was backing out of my driveway, and must have ever so slightly grazed the wall you see in the 3rd picture. I did not realize until I parked back in the driveway and went to plug her in. I have already used touch up paint, but as you can see, there are still quite noticeable, deep scrapes in the plastic. Is there anything that I can do to fill the scrapes myself or would you recommend taking it to a body shop? Any advice and information is greatly appreciated!