If things get weird in a hurry and you can only stuff a few things in your bag as you are running out of the house. You might want to grab a Pack-Rifle. The Pack-Rifle is a light weight (less than a pound) utility rifle that can transform into a fishing pole. The fishing pole .22 rifle will set you back about $425, more information here.
"The receiver, and most other parts, of the Pack-Rifle are machined from high strength aluminum, while most wear parts and fasteners are constructed of stainless steel. The barrel is a precision button rifled, Cro-Moly liner with a carbon fiber composite outer. Carbon fiber is also used for the butt stock tube of the rifle. This construction makes the Pack-Rifle not only the lightest rifle out there, but very weather resistant also. In addition to being light, the Pack-Rifle also takes down to a very small size. The same mechanism that allows the loading and extraction of spent shells also enables the rifle to take down into two pieces, in less that 2 seconds and without tools."