First the man and his plan;
Could there be a Clinton 270 Trump 268 result on November 8th? Yes most certainly and quite possibly actually;
In this example if Mr. Satiacum held to his promise and voted for e.g. Bernie Sanders the result when the votes were counted woudl be Clinton 269 Trump 268 and Sanders 1.
The decision would be then left up to the House where each state would have one vote based on the majority count of each states congressmen (the Senate would choose the vice-president).
Since the Republicans control the majority of such delegations the could and most likely would choose Trump even if Clinton had won the popular vote and the initial Electoral College vote.
What this would do for the settling down of the country after such a divisive election doesn't bear thinking about-but it is a possibility.