Cruise control? Yes that makes sense. It didn't have to be reset but the duration was so short that maybe it didn't pick up.
Considering we were running at 78MPH in 114F temps for a couple of hours could very well have sent a resistor or chip on the cruise computer beyond it's temp limits.
Thanks guys for your insight.
Anziani
'93 300CE 175K
'95 E420 117K