East Hillwood

who can we contact about unknown vehicles parked in neighborhoods? vehicles belong to no one on block. vehicles show up in middle of night and they are just left there. no one sees vehicle appear and vehicles remain. sometimes they are even parked right in front of your house and you can not park in front of your house because of this vehicle being there. no one knows who the vehicles belong to or where they came from. how can we get the vehicles removed? this happens quite frequently, i would say at least once every two months. it is very annoying and dangerous for the children in the neighborhood. you don't know who or what is or was driving this vehicle. i would really like to know why we have to continue to put up with this. we pay property taxes and try to take care of our neighborhood to have it trashed by abandoned vehicles.