I wonder if this isn't a spur of the moment thing - if he's prepared for this for quite awhile and so will be successful in keeping her concealed for a much longer time than at first thought.
Could he have a credit card no one knows about, been stashing money and nonperishables away, to the point he's able to sustain them for weeks undetected? So, I'm thinking, he never intended for this to be a quick trip. The fact that he so brazenly ID'd himself before taking her makes more sense - he'd planned to be gone for a long time, so even if he did it really sneakily, it wouldn't matter, they'd KNOW he was with her because he disappeared also for a very long time.
Could he have a credit card no one knows about, been stashing money and nonperishables away, to the point he's able to sustain them for weeks undetected? So, I'm thinking, he never intended for this to be a quick trip. The fact that he so brazenly ID'd himself before taking her makes more sense - he'd planned to be gone for a long time, so even if he did it really sneakily, it wouldn't matter, they'd KNOW he was with her because he disappeared also for a very long time.