Well, MugsBRZ, now that is aggravating ......
If you have a code reader, I suggest you plug it in to see if it will give YOU a code.
If you don't have a code reader, I suggest you purchase an inexpensive one.
You may consider disconnecting the negative battery terminal for a minute or two, then reconnect it, to see if the machine will right itself.
Other than that, just drive it till you can get it back to the dealer ..... the sooner the better.
Bubba says just to put a piece of black electrical tape over the CEL light till you can get it back to the dealer.
humfrz