2001 S 430 110K miles. I was driving in dry weather and lost all electrical power. Dash went out, engine quit, no turn signals... Luckily I coasted to a safe place. When I put it in park I could no longer even turn the key. The key ceased to function re trunk unlocking/doors. I could see the light on the key blink when I pushed buttons on the key. When the flat bed came we put power to the battery and the car started. Battery is 6 months old. Tech is looking at it . Any ideas? UFOs?