While there's no specific law at this time for not clearing off your car, it's still dangerous and you could potentially be held liable in certain situations.
You should always double and triple check the thickness of the ice you're going out on. Make sure that the thickness is consistent and not just thick in one area.
the incident happened in Baldwin on Route 113. Fortunately, the bus was en route to pick up children and did not have any kids on board at the time of impact.