I doubt Christie ordered this, but I have a very strong feeling that he found out about it a long time ago and did not say anything.
Of course, the latter is almost impossible to prove.
Either way, his chances at the White House is a bunch of hot air. He is not liked by the GOP establishment, he is not liked "enough" by the Dems for them to elect him over Hillary, and frankly, many people will be nervous voting for a guy who is in such bad physical shape. The way I see it, unless he has a plan to shed 250 lbs by 2016, he doesn't have a shot at the White House either way.