Sprurious alarm cascade

Driving interstate at sixty mph. For no reason at all, every alarm indication in the vehicle lit up. All of them. A light show. In addition I lost accelerator. Engine would rev but no change in speed except to decrease. I steered to the side of the road (lots of horns blowing) and some of the alarms cleared. Once stopped, all of the shift indicator light were lit at the same time for Park, Reverse, Neutral, Drive even though the vehicle was stopped. Did not turn it off, because I thought it would not turn on again. Moved it from Park to Drive several times. Finally it started to move. Drove it to the dealership. When I got there, many of the alarms timed-out (I think) but the shift indicator lights were all still lit, and the check engine light was on (do ya think?). The service person took a wireless alarm collection box, brought it back to the computer and had a screen and print record of every single alarm going off. "I have never seen this before." They have had it for three days, researching and test driving and cannot find the cause, nor did it repeat. Of course, not. I think this was major systems failure. Maybe Jeep corporate should get involved. The dealership is out of ideas on what to do and want to give the vehicle back to me.
Any ideas or suggestions?