Very similar thing happened to me a few months ago with my 13 Lux. Was running weekend chores mid morning, parked for a minute to run into a store, came back out and tried starting, all the dash lights would come on normally but the engine wouldn't start no matter what. Still under warranty, called Road Side Assistance, they made me do a few things (key fob pressed against the steering column etc, etc), nothing worked. They finally decided to send some help.
As I was waiting for the help/their commissioned roadside tech/mechanic to arrive, I decided to give it one more shot, and sure enough the engine started this time. Called them back and cancelled their roadside assistance appointment.
No clue at all what that was about. Perhaps, LRNA was testing out their big boss remote control engines shut off technology in case of an armageddon to prevent civil unrest/chaos
P.S. Not a conspiracy theorist and no star trek doll collection in my basement