Assuming a person has arranged for a vehicle to take the person from the airport to the person's place of quarantine (home, hotel, elsewhere), how does the person get to the vehicle?
For example, say a person returning to Japan has a car parked in the parking ramp (which the person parked before leaving the country). To allow the person to simply walk to the parking ramp would risk contact with others and seem to defeat the purpose of the quarantine requirement.
Similarly, if the person has arranged to meet a hired car or a driving family member, one would assume that the person wouldn't just be allowed to walk out to the general area where the car will be and wait unattended for the car to arrive.
How does a person go to the vehicle from the arrival gate?