This is why I am a firm believer in having far more than the government recommended few days of food and suplies on hand. In fact I am a firm believer EVERYONE should have a month or more, even if they aren't a so called prepper. Any kind of disruption could spell chaos.
I have plenty of supplies on hand to last through a short term (6 months or less) crisis and I am adding everyday. Not becaue I believe the world will come crashing to an end, but because I believe that short term catyclismic events, both natural and man made, will occur.