I think "coordinate with all the other robot cars in the area and pick a place where it won't create traffic" is pretty unlikely to happen. Tesla will do their

I think "coordinate with all the other robot cars in the area and pick a place where it won't create traffic" is pretty unlikely to happen. Tesla will do their own version of that which only negotiates with other Teslas, GM will do one that sends all cars to the wrong city, and Waymo will have their cars perform some optimal algorithm that is somehow incompatible with any human drivers they encounter.