For several months now I've had a theory like yours, although on a smaller scale. I think when Obama's team knows it's over, they'll begin to quietly whisper of "possible unrest". It'll make it's way into the lib media, too. I'd guess that by three weeks out from election day, both sides will have seen all the internal polling and know what's coming. If and when those whispers of unrest pop up, we'll know we're headed to victory.
Ibama will call a joint session of Congress right before the election for some “important” reason just to get his stupid face on all of the networks. It will break precedent and will be decried as a political stunt but the MSM will say he’s just being presidential.