"My phone died" Cas held up the cell phone, "the lamp post did not have the means to recharge it."

"Alright Mr. Anorexia, lets get you outta here" dean rolled his eyes, "and plug in that cell back at base"

Cas looked confused but climbed out of bed and walked towards the door.

"WOAH!" Dean shielded his eyes from Cas' naked butt, "Clothes! Clothes first!"

"... right"

And so Cas got dressed, and the winchesters left Canada, returning to the base of the Men of letters-ooorrrr well, not quite.
Along the waaayyy...