Call this law "people-zoning" in my book. While it probably passes constitutional muster prospectively, it seems a tad reactionary. It's not like a sex offender looking to abduct a school-aged child is not going to do it because he happens to live 10,000 feet from a school instead of 2,000. What's next a designated sexual predator town? What about the other violent offenders, why not them too? Let's just go back to the good ole days of penal colonies. Throw em all on an island and let them fend for themselves while we're at it.
There are a myriad of problems inherent in the registry in that all sexual predators are treated alike -- lumping in those who had consentual sex while underage, gropers, NAMBLA types that possessed kiddie porn or were stupid enough to download it on their computers, with the hard core rapists and child molestors.