Are you really willing to believe that if the medical doctor thought and ambulance was required for the supposed injury, they will choose to have someone die on their watch, with full legal liability for the death. What do you think the doctor has to gain by arranging other no ambulance medical transport here.

The doctor was taking a calculated risk that whatever care the worker didn't get, as a result of taking a ride share instead of an ambulance, wouldn't kill him. Keeps Tesla's ambulance costs and trip numbers down.