did you contact the township or the local spca?
usually when dealing with any organization you have be be a pest to get things taken care of. one easy way to get real annoying to the local politicians really fast, the press. nothing makes a wanna be jack kennedy jump faster than the opportunity for a little camera time.
step 1: call your town council members offices one by one over the course of a few days. make sure you hit each of them twice over a one week period.
step 2: go take pictures of the conditions the animals are living under.
step 3: call the local papers and radio/tv stations and tell them about these animals adn mention that you have pictures and have called the township several times with no response.
step 4: watch the fun begin. i suggest getting a club t-shirt ready to wear on camera when you are interviewed (hey, we like free press too

)
there is seriously no better motivation to government smackers than the press. wide spread embarrassment can easily ruin them, especially since it is an election year for most townships in new jersey