Little glowing arrows

I want to plant annual ryegrass as early as possible so it is above the water level on our farm. After no-tilling for a number of years you forget how many trips you have to make across a field. It won't pack, my little helper had an accident with the heavy roller, I'm trying to make hay, and the dust is so thick at night I can't see a thing.
I'm attempting to use GPS but it is much more difficult than playing Super Mario brothers on the Wii.
I kept looking for the end of the field and suddenly I caught a hint of a reflector. I put the clutch in at the very last moment.

I knew I should have parked on the other side of the ditch...
Just about smashed by nephew's favorite pickup...