Scratch Bumper - Repair Options?

[GannyCy]

I scratched my 640 GC bumper cover with a metal tree stake I was carrying. Its about 1.5 to 2" long. It appears to have taken off all the clear coat (and Opticoat coating that I had applied after taking delivery) and I can easily catch an edge with a finger nail. Attached is a photo showing the scratch (in the middle of the photo). Taking it a body shop for a re-spray would be an inconvience over such a minor scratch. Besides doing nothing or taking it to a body shop for a re-spray, are there any other viable options for a good repair with minimal inconvienence?

[m34SPD]

A lot of touch up paint, and a little wet sanding. Its not a huge scratch.