When turning left across two lanes of traffic and you have to wait in the middle can more than one car be in the middle?

No, but technically you can't wait in the middle at all for safety reasons. You would have to wait at the lane you are coming from behind the line when traffic is too heavy to cross and turn until it is clear; furthermore, if you were to wait in the middle and the light turns red, it would be considered running a red light; therefore, a ticket is issuable.