post the question on the yellow airgun forum theres loads of members on there, its a US forum so theres bound to be a few new yorkers that can tell you.

What you could do is get one of the people you're staying with to buy the gun for you. As regards to using it on squirrels. I know in most states you need a hunting license, however with regards to pest control i think you do not require one if it is on the couple you staying withs property.