I don't doubt that things take time to adjust. But when it makes a lot more economic sense to take a cab compared to owning a car and driving it (after all, the main reasons cabs aren't all that economical today is the requirement of paying a driver while you just sit there), there will be less cars parked on the road and therefore it will be easier to have places where the cars can pull over and pick up / drop off.

Anyway, "people are willing to break the law but companies aren't" seems a really weird reason to stick with the status quo over something far more efficient.