Fight back!!! Find a stand of bamboo along the roadsides--it is often used for erosion control. Or, go to a nursery and order several plants of the spreading types--you have to ask for the spreading (running) type because it takes over a field in no time.
http://www.hgtvgardens.com/garden-basics/nursery-school-avoid-bamboo-like-the-plague
cut a bunch of canes into lengths that includes a couple of nodes, and while walking the dog around the neighborhood late at night, as you walk by the garbage year, (best to do after a rain with soaked ground in the spring) push the lengths into the ground along the edges of their property.
By the time the stiff starts sending up visible shoots, there will be a nice huge root network everywhere underground. Not only will it hide the trash in the yard, it will eventually cover the entire property from view from the road! Then the HOA will have to get involved, because their neighbors will begin to complain as this blessed plant sdtages its quiet invasion throughout the community!!!