I would bugout for all of the above mentioned scenarios. I live in a half and half ghetto/suburban neighborhood that is affectionately called "Prostitution Park". Lots of undesirables of every imaginable shape, size, and color, not to mention the state police visits to the meth houses and domestic disturbances. I hope I have enough warning to get out by car, if not, we'll wait til dark and hump it to my mother-in-law's house.
We had a tornado on Jan. 2 of this year, and I had a tiny taste of what martial law and shft shortages will be like. Due to the nature of my neighborhood, the state boys blocked off the only way in and out and stopped every car after dark. Now I understand looting could theoretically happen anywhere, but this place is known for its poverty. I had to answer a lot of stupid questions and submit my "papers" but at least my vehicle was not searched like that other poor guy. I want no part of it. If I know its coming, I'm gone.