Yeah but if the guy lives just on the edge of Kingston (like he seems to say) I would not reccomend that. Shooting a firearm inside Kingston city limits, like most cities, is banned and I would not mess with that for a number of resasons. Too dangerous even with a .22 sub sonic. If you got caught shooting a firearm within city limits (even if you are basically outside of town) it would be the end of your firearms forever, license, and a probably a nice big fine. Not worth it.
If the OP was more specific about how far outside of Kingston he is it would help... I used to live in Kingston, I know the areas a little on the "edge of town" and I would not advise shooting in those areas. To be honest, I'm not even sure I would shoot pellet guns there, it would depend on the specific area of the OP. He says he cant shoot in his area so I would not try to convince him a .22 sub sonic round would be ok.