Live near Little Rock with a very high dark-skinned "Amish" population if you get my drift. Hence owning a couple of belt-feds (LEGAL ATF form 3&4'd!) If SHTF, gonna have to bug out via rail old rail road head and fire lane and book 120 miles up to Harrison, AR in the Ozarks.
Society has about 48-72 hours before the vampires come out and chaos reigns. Awareness and Prepardness will cause most of the good guys to survive.....after 72 hrs though....all bets off, survival of the fittest if you haven't relocated.
The speed with which law enforcement public trust can disintegrate is frightening. See Athens where it is the public emplyees rioting and throwing fire bombs at uniformed peacekeepers, likely military. So it means making sure that your local defenders - sheriff's office, police and fire - stay in place even if the national picture is bleak. It also means that public employee unions like the SEIU are constantly monitored so that local law enforcers remain obligated to the community, not the union thugs.
I would be comfortable in your scenario but if one can get to the Kerr McGee, there is ton of coast line and several islands for isolation and safety.
Just got to figure out how to get all my stuff there and acquire a boat.
Still, being on an island provides a rather large moat. Firewood is a problem.