I feel absolutely terrible for bumping this, but I never got a chance to reply. And I think about this stuff A LOT.
Mode of Transport: My bike, or maybe an electric scooter.
Off-Hand Weapons: Putter, wrench, hammer, knife, some screwdrivers, and a machete.
First Place to Grab Supplies: A place near me called the "Whizin Complex", which has restaurants, grocery stores, a Do-It Center, and a firing range. Where I'd grab a shotgun and ammo.
Place to Hole Out: Costco. Four-foot thick concrete walls, foot-thick steel doors, and tons of supplies.
There's MY plan.