Martial Law... now if I am not mistaken, that basically shuts down the freedom to travel about the community and to conduct business without government approval? Probably more than that as well? I guess that depends on the governments objectives at that point in time?
Our personal solution was thought up and acted upon some time ago. We simply secured our ranch in such a way we could stay here for a couple years and never need to leave. In style and comfort as well...not living under a rock and eating grubs as many will need to do.
We believe that by remaining a wall flower and not raising our heads (leaving the ranch) we will avoid the vast effects of martial law. In essence we will appear to not even be here. No wood smoke during daylight hours, minimal activity as well. Security 360 and secured gates. No lights on after dusk, no contact off the ranch, billiards, poker and other forms of stress relief will ensue.
Of course cases of wine and beer are always rotated. A nice drink while off duty is a great medicinal prescription.
However if you are one of the vast majority that will require leaving your home to try to get stuff to survive...well good luck on that trip. Then again if you do make it back home...home might have been ransacked and all is for not then...
If you are not ready to survive a long term Martial Law shut down you might try not spending time posting here and rather getting your crap together there...instead
