I could imagine the state's attorneys general could coordinate such a thing. Hell, we have the internet. I think the idea that coordination has to occur from the top down is obsolete. Just look at state "right to carry laws." Quite a number of states have recipricol agreements between each other to recognize permits to carry concealed firearms issued by other pariticpating states. This coordination was acheived in spite of a hostile administration in Washington that was trying to make firearm laws more restrictive at the federal level.
You might want to see what's been waiting in the wings for an opportunity like this to come along. Major changes to our government need to be approached very. very cautiously, the enemy is hihtly organized and has plans for every contingency. One mistake and we have a new government.