I was just messing around after a race and found that there is a rock just to the right of the finish line that will boost you out into the mountains. Video below. I did get an exotic, but I'm not sure if I had a 3oC on or not.
Maybe this is a shortcut that I didn't know about, but it doesn't look like one.
https://youtu.be/PLffgEWBdsc
-
Sure I'll humor you, you got an exotic for going out of bound, the fact that the race was over had nothing to do with it. GENIUS!