Do you want a simpler solution ? Why not just take a  cab back to where ever your home address is and pay the cab driver once you reach home ? Maybe charge your phone in the car ? Why the heck would you stay at a random place for 2 days ,in a motel,as you're lost,when you can simply take a cab back home ?Either you're lying or trying to sell your legendary account,the story "I'm away from my desktop so I can't sign messages from my old address" fits perfectly in the scenario.