My best guess is that she was a controller or officer for the Los Angeles Emergency Management Department. She may have already had several contingency plans in place for extreme civil unrest and infrastructure collapse.

A guy in my old reserve unit who's a cop told me that his squad has a zombie plan. Hell, a few other guys in the unit did too. Not that far fetched to consider when you look at it from the viewpoint of using it as a tactical thought exercise. It's fun too.

Even the CDC has stated that: "If you are ready for the Zombie Apocalypse, you are ready for anything."