The Westchester County legislature is reviewing whether the mandatory storage law passed by Andy Spano will hold up now that the 2A is incorporated to the states. According to the Journal News:
… “We have to consider whether our law is unconstitutional,” said Legislator John Nonna, D-Pleasantville, the chairman of the legislation committee. “We should examine whether our gun-storage law is subject to a constitutional challenge.” …
I suspect they’re going to end up changing it. Spano was the driving force behind all the antigun initiatives in the county and with him gone I don’t think there will be much cheerleading for it.
I’m fairly certain the Heller decision addresses this explicitly and these laws are unconstitutional.
Heller was not about mandatory storage specifically, but both essentially were about keeping firearms readily accessible for self-defense.