My battery had a loose connection issue, some time ago and I go the occasional occurrence, similar to this. What happens is that a surge or power cut hits the system then it returns. The car dies but because the key is still on, you get the light show. I got it because I had to reset my computer a hundred times due to a lean code on my MAF. It really confused and scared me, as I thought it was a computer problem.
A non-SVT Tour has a Rev-Limiter @ 110. It probably hit and the car lurched due to the fuel cut. It then jarred the battery and interupted power temporarily. When power return (milliseconds later)car was dead but all of your lights were on. This is my impression of the issue. It happened to me on a powershift from 2nd to 3rd. Scared the piss out of me!
