In NYC I'm pretty sure you can own a bow.

As for the guy with the blow gun... I want to see it in person before I believe it. There are ways to do it, but they are all based on bleeding out or a CNS kill. The former takes more time than it does to run away, the latter luck or the rabbit being held down. Looking at the angle of the dart, it looks like it was either caged, or very tame.