It wasn't until just then that Shane noticed Rosalie was barefoot. He'd been distracted first by getting out of the hospital as swiftly as possible, then by the men following them through. It was only when he looked over at Rosalie to make sure none of the men had come close enough to touch her that he saw her so intent on her feet, trying to make sure she didn't step on something.
They were close to the end of the alley. He touched Rosalie's arm, said "Hold still," and then picked her up again without any real warning. She was barefoot. The ground was freezing and covered in broken glass. Carrying her to a cab was a simple equation, and it elicited some whistles from the men behind them.