Necessity is the plea for every infringement of human freedom. It is the argument of tyrants; it is the creed of slaves.-- William Pitt the Younger (November 18,1873)
The law in MA:
MA General Law: "Section 131L. (a) It shall be unlawful to store or keep any firearm, rifle or shotgun including, but not limited to, large capacity weapons, or machine gun in any place unless such weapon is secured in a locked container or equipped with a tamper-resistant mechanical lock or other safety device, properly engaged so as to render such weapon inoperable by any person other than the owner or other lawfully authorized user. For purposes of this section, such weapon shall not be deemed stored or kept if carried by or under the control of the owner or other lawfully authorized user."
Now..."under the control of the owner"...As I read this I conclude that the storage Statute is essentially null when firearms are being carried or under the control of the owner (it says it right there in the language). So my question is; At the point of which the Police execute the scheduled (but still illegal) search the firearms would, even if laying about, in fact be "under the control of the owner". Therefore there would be no violation for the Police to act on.
UNLESS...there is no one home when they execute a search. Which brings about a different set of problems altogether.