I've heard many times before that under Giuliani, NY gave homeless people a one-way bus ticket and a sandwich to get rid of their homeless population but have never been able to find information online confirming it.
NYC progressive mayor Bill Deblasio is shipping out homeless people right now as we speak.
I think this makes sense. Why do homeless people need to live in expensive cities where housing is scarce? It's better for NYC housing to be occupied by people working in NYC and their families.