Did you find that in New York? I wasn't aware it grew here.
It does indeed. I have found it where...
a hedgerow still exists (these are quite few and far between)
a hedgerow used to exist and someone left a tree or two
it is planted as an urban/suburban tree due to it's pollution/drought tolerance (there is a hybrid that bears no fruit or thorns)
Familiarize yourself with what the tree looks like (in all 4 seasons) and when you're out driving around in the country keep your eyes open! I have asked many landowners if I could take dead stuff away and have yet to be denied.