One mitigating factor for that is that service cars will have much higher duty cycles (80%+?) than private cars currently do (5%). What might be interesting is

One mitigating factor for that is that service cars will have much higher duty cycles (80%+?) than private cars currently do (5%). What might be interesting is how they deal with peak usages like commute hours. Would swarms of cars try to hop over to the next time zone when it's easy?