But what happens when you have tons of self driving cars, and it starts snowing, do all this cars get stuck until the snowing stops and how can you clear the ro

But what happens when you have tons of self driving cars, and it starts snowing, do all this cars get stuck until the snowing stops and how can you clear the roads if the cars are stuck? (I am referring at a scenario where this are actual self driving cars and not drive assist systems with a human behind the wheel)