This morning I turned on the auxiliary power to enter an address into the navigator. It took less than two minutes. Then when I tried to turn the car on the warning triangle with exclamation point started flashing, all of the warning lights came on and the display that normally shows energy usage did not turn on. I tried the turn off the car but the navigation display would not turn off and the gear indicator (park, neutral, drive, reverse) wouldn't turn off. I couldn't take the key out of the car because the warning buzzer would not stop sounding. Tried turning the car all the way back on, but it wouldn't go into gear and I am sure that the engine never actually turned on. When the tow truck came, he had to jump the little battery to be able to get the car in neutral. The dealer had to unhook the battery to finally turn off the car. Of course this happened when my parents were visiting and we were on our way to take a road trip in my car. It is Saturday, so it won't be worked in until Monday, so I won't know what is wrong until then. Anyone have this experience before?