I think GOTV efforts might have gone into overkill. I got 3 automated GOTV calls in the last week of the election, I'd already voted early, but with no live person I couldn't even tell them I'd voted so stop bothering me.
The automated calls were NOT the 72-hour program. Our program was for personal contact---face-to-face, if possible. Besides, if you voted early, we picked that up on our first "flush" and you would NOT have gotten a call.