I was on a road trip this week and I had the cruise control on. There was a weird drop in RPM and some hesitation. I canceled cruise control but kept it on. Then a little later it the cruise control resumed by itself. I was in the mountains and doing a lot of downhill traveling. Could this have freaked out the cruise control? I searched the forums and did not see anything that fit this. Any ideas of what to check? I could not get duplicate the events.
Since you were going downhill in the mountains is it possible you accidentally re-engaged the cruise control much like someone hitting their wipers while going around a turn? It just takes a little tap...