Even some towns that are bigger will not have the manpower. When talking to a LEO he told me the staffing of a typical shift. I almost passed out. I suspect that unless you are in a big city, the staff levels are a lot smaller than you would think.
Going to be kind of hard to rule with Martial Law with minimal staffing. Even adding the State Police, County Sheriff, and Military it’s going to be a tough battle for them to contain everyone.