Seconded. That said, this is laughably doomed for failure. It's still shocking, but this is NY. Their police force is the most militarized in the country and most of the world. Over-stepping their authority and bounds is a daily activity.
In comparison: NY passed the "SAFE Act" which, among other things, banned sale of "assault weapons" and required current owners register. The compliance rate with the registration requirement is about 4% ... out of a half-million owners.
NY is willing to go far, and sweep up violators as they're found.