Disclaimer: I in no way believe that the solution to the illegal immigration problem is to simply change their title from "illegal" to "legal", a lot of the illegal immigrants bring problems with them that we cannot solve by affording them luxuries of freedom.
That said, taxpayer money in New Haven is not exactly scarce. With people like Oprah and Mel Gibson owning houses there, their tax revenue is through the roof. Another thing to understand is that a lot of the illegals in CT are not running across a border to get in the country. They have gotten in elsewhere and have come to CT because there's a lot of economic opportunity there. New Haven faces different challenges with immigrants. They're not running across the border with cocaine shoved up their asses, nor are they shuttling dozens of other illegals in minivans on weekends. They're not (at least not in my opinion having lived in CT for a majority of my life) dangerous, nor are they significant enough in number there to make much of a difference.
It is, however, an alarming event if its a trend (which I'm sure it wont be)