Uh oh... another "don't VDC off or you could dead" story.
In all seriousness though OP, glad you are alright and only the car was damaged. At that low speed it could have been some loose dirt/gravel/oil on the road + cold tires like others have said. Always be mindful of road surfaces. You should never take driving for granted (yea we are all guilty and do it on a daily basis).