Roseholme Cottage is in the Indianapolis neighborhood known as Broad Ripple, which consists of a business district containing bars and restaurants, vintage clothing shops, art galleries, organic produce joints, and hair salons, and a larger surrounding area of shady tree-lined streets with hopelessly twee little homes dating from the first part of the last century. Not too many blocks south, however, the boutiques and brewpubs are replaced with check cashing joints and seedy package stores, Volvos and Prii give way to primered clunkers and older domestic sedans on dub-deuces, and graffiti-ed plywood becomes more common than tastefully painted shutters as a window treatment. Should things get grim in the city, we'd be disturbingly close to the front lines.
Sure it's unlikely, but being old enough to remember riot police on the streets of Atlanta in April of 1992, having 30 rounds of Keep Off The Grass on hand makes a nice security blanket for me.
But as a piece of "bug out" gear, is a carbine really that useful? Frank James brings up some good points. You should go read them and ponder how a long gun fits into your Worst Case Scenario plans.