it doesn't say anything there about the breakdown in civil order.
The "Hurricane Pam" scenario did include the prospect of widespread civil disorder including gun violence.
BTW, NBC is reporting that the list of FEMA excercises planned in 2004 included 222 events, all but two involved mock terrorist attacks. The two that did involve hurricanes were drills to plan for a hurricane at the same time as a terrorist attack.
See: http://www.msnbc.msn.com/id/9178501/