In New York, the taxis with "medallions" are required to take you to places within the metro area. I'm not sure at what point that requirement sets in, whether

In New York, the taxis with "medallions" are required to take you to places within the metro area. I'm not sure at what point that requirement sets in, whether it's hailing, or once you're in the cab, etc. but it's well-known that you can report them for refusing to take you somewhere.