So I got my oil changed Friday evening, and afterwards, I was driving to my girlfriend's house. About half way there, my oil light came on, smoke started coming out of the engine bay, and the car died. I got it to the side of the highway, and oil is coving the front, passenger side of the motor, and the car won't start. Like, when I try to start it, I heard the starter motor whirring, but the engine won't turn. The oil drain plug, and the oil filter are both still there, so that's not the source of the oil leak. Any ideas where I should start looking?