(a) An operator may not drive a vehicle when it is loaded so that, or when the front seat has a number of persons, exceeding three, so that:
(1) the view of the operator to the front or sides of the vehicle is obstructed; or
(2) there is interference with the operator's control over the driving mechanism of the vehicle.
(b) A passenger in a vehicle may not ride in a position that interferes with the operator's view to the front or sides or control over the driving mechanism of the vehicle.