Castiel still hasn't figured out how to save numbers so the contact list is absolutely blank. He considers having Dean show him how later as he slips it back into his jacket pocket. "I don't have any money with me." He'd been planning to do...well, some thing, if he'd survived the encounter with the Leviathan. Maybe see if there were any soup kitchens he could crawl to, or a shelter or a kind stranger.

Yeah. Cas has been winging it for a little while now.