Well it wasn't quite a blind corner and I was in the middle of nowhere (no houses around) at 7pm at night. It had just gone down from a 50 to a 30, so it wasn't quite like that. But thanks for all your advice anyway guys. Looks like I'm gonna have to get these 3-5 points and live with it.
By your own admission you were tired yet came round a blind corner (must have been blind or you'd have seen the officer) at 50% over the posted limit. What if there had been a stationary or slow moving car in the road? Or a pedestrian?