He could have if he'd locked the door on you but that would have been rude, so he didn't.
Looking left then right, he took in everything about their immediate surroundings. From the tear in the sky and how people kept glancing to it with concern, glancing to him, his box, and his companion with concern as well. But they weren't screaming or running away in fear. The citizens appeared to be used to the arrival of strangers, but not quite in this manner.
"That's not the problem, Clara. The problem is..." the Doctor trailed off, turning to look a her, features grave and when he spoke again, his voice was low and deadly serious. "We cannot leave this place."
After a beat, the look disappeared and he smiled at her, cheeky doctor. "There's no way of knowing what would happen if we tried to leave through that rip in the sky, and I'm concerned with what it'll to do her engines, so we'll be here a few days." He patted the side of the box lovingly, concerned for his waifu.