I took my 2012 in about 6 weeks ago, did not take long and was told they did a program update. They also inspect the contacts to see if they are burned. Takes longer if contacts need replacing.
Understand Ford refers to this as the "Southfield incident", back in late March/ early April when we had the 85/90 degree weather a number of Ford emp's vehicles all shut down after leaving work along the Southfield freeway in Detroit. This brought it to their attention. I was told 5 or 6 emp. Explorers were all pulled off the road in a couple mile area!
Interesting and have no reason to doubt the source.