Let's see, order of events: Some "trigger" creating great unrest. Martial law put into place, confiscation of firearms "for our safety" assisted by the "Civilian Security Force", local, state and federal LEOs.
Electronic control of all credit card usage to restrict citizens from purchasing gas (and food) for flight. Bicyclists with large stash of Beenie-Weenies will make a brave attempt to survive longer. Cash sales can be discouraged too by electronically calculating sales against credit sales and inventory. Any cash sales on the sly of any easily monitored product such as gasoline severely punished.
Database fine tuned also further singling out selected groups, meanwhile, "fairness doctrine" has dampened all real news and information. "Ministry of Information and Education" Czar controls all info further isolating selected groups of citizens which are rounded up and put into "compounds" (available bases in remote areas) further weakened by inadequate diets to keep resistance low.
Okay, tune in next month and I'll have more if they haven't passed this point yet...
I don't know about you, but the chain of events for me and a whole lot of them stops right here.
"Tis better to die on your feet than to live on your knees." (Someone famous)