I saw a very healthy looking red Fox in Flushing Cemetery a few weeks ago. Flushing is in Queens NYC. As it passed fairly close to me it didn’t look warily at me and go wide, rather, it glanced at me and then paid no further attention. Feral animals are usually more cautious than that.
It really depends on opportunities to become habituated. Canids seem to have a tendency to adapt to living with humans easily and begin behaving quite similar to stray dogs.
For example, there are a number of large paper plants in the nearest city each taking up hundreds, possibly a thousand or more acres. Foxes have moved in everywhere they can because as far as they know they are top predator in that environment. They take time out of their day to stop by the areas where the workers take their lunches outside. In those parts of town those foxes have little fear of humans and seem to know that humans are the animals that give away sandwiches.
If you know people at the plant youll hear stories of this guy or that with a number of little lunch friends.
When I was a kid I lived in a large city and in that city was a restaurant with a large park attached that they used for festivals and things. We only had one car when my mother had taken a job there and she had to close the restaurant so my dad would have to take us along to pick her up. When we arrived we would sit in the back parking lot between the building and the park in the dark. We tried to be quiet when the foxes or coyotes would come through the park to visit the dumpster to check for steak bones and french fries that didnt quite make it in. After a while they came to know that the same kind of animal that dropped fries was also in the car and would walk by and check us out to see if we were offering anything.
They are capable of distinguishing individuals and can become quite bold around those people. Maybe you look close enough that the fox misidentified you as the people friend that hands out sandwiches or fries.