Slow down to a crawl, definitely, but if you stopped until they got off the street completely, you might never move again in some areas of SF (the accident happ

Slow down to a crawl, definitely, but if you stopped until they got off the street completely, you might never move again in some areas of SF (the accident happened near Market Street). And it's not a given that doing so would make the situation safer, as other drivers would eventually drive around your car.