Spam Cans find the nearest field (literally) and circle to bleed off energy. It seems these guys were trucking cross country, at 41K feet, I'd guess there must have been a runway within range...Even trying a restart.
A good friend of mine is a ex-Delta Captain. He related to me that the pilots' union strongly urged/cajoled the airline to not exceed FL 410 so that the guys up front (or at least one of them) would not have to wear the humorously disfiguring full face mask. He related to me that this was a common agreement across the majors -- that it was common practice to avoid altitudes requiring one of the crew to don the mask.
the genesis of the 'policy' was that the masks, as you know, if worn for a while leave deep lines in your face, and thus they sought to avoid cruising at FL 410 and above.
I never flew commercial - so you know better than I. I just know the stories he told.