Last night around 1 am I was woken up by a neighbor telling me that my car headlights were on. I parked my 2006 scion tc around 8pm. I always keep my lights on the 'on' mode and let them automatically turn off when i open my door. I went back outside around 10pm to let the dog out and my lights were still off.I never touched my car since I parked it at 8pm and they keys were in the dresser drawer. I've had this car since 2006 and this never happened before. When I went to turn them off, the headlights turned off immediately when I opened the driver door. Does anyone know how or why this could have happened?