That's always one of the tricks these companies pull. They take some communally-owned thing that used to have a clear purpose and start using it for their different for-profit use.
Take sidewalks. They're surprisingly expensive to build, but they're built from community tax money so that people walking don't have to walk on the road. Now Uber is using them as a place where they can drive their robots. Are they paying anything? I assume not. Sidewalks have also become a favourite parking spot for rental scooters. Do the scooter companies pay for that? Of course not. Even when they're parked well they reduce the space available for walking, and when they're parked badly they can force pedestrians out into the street.