Did she have any indication, or any reason at all to believe that RV was actually being used by homeless people? Maybe a neighbor just bought an RV?
I also love the use of "my neighborhood" there. Because it sure doesn't sound like she's saying it in the sense that it is the neighborhood in which she lives. Feels more like it's being used in the possessive sense. That it is her neighborhood. She has some sort of claim to it and the right to demand certain things happen in it, that overrides everyone else's rights.