No. Flippin. Clue.
If the CEL is on, I would limp it back to the dealer. If you feel it isn't safe to drive, contact the dealership and have them tow it under warranty.
If the car is normal again, I would consider having the video camera handy and in the glove box. Obviously that doesn't help right now, but should it happen again in the future you will be able to document what is happening in a manner that the dealership will have to acknowledge it.
FocusFest 2013: Best of Show
Gateway FFW: Show Class Outstanding
September '13 ROTM