The mark is indeed a little bit misplaced. The Maps.ME navigation indicated I could exit from the parking lot directly to the State Park Drive - taking a left turn towards the highway. This however is not allowed. See https://goo.gl/maps/rJoFLbvcQ352 
Of course I didn't follow the erroneous navigation and left the parking lot towards Soquel Drive - where you can turn left and right - and went from there to State Park Drive and the Highway.