That seems contradictory to the info posted at Handgunlaw.us regarding prohibited locations in NY:
He knowingly has in his possession a rifle, shotgun or firearm in or upon a building or grounds, used
for educational purposes, of any school, college or university, except the forestry lands, wherever
located, owned and maintained by the State University of New York college of environmental
science and forestry, without the written authorization of such educational institution; §265.01[3])
Emphasis mine.