They were met by people who actually live in that neighborhood who told them to take a hike.
I have more hope for Detroit than a lot of people do. The collapse of the government has forced people to step in and take over -- and the fact that people are doing so ends up empowering their neighbors. People look at the Detroit Mower Gang, or listen to Chief Craig on the subject of owning a gun, and they start thinking maybe they can do something about their own situation.
Once people get out of that, "I'm so helpless, someone has to rescue me" box on one front, they often start taking charge of their own life in other areas, and that's when real change happens.