He would find, when he looked for her, that she wasn't far away, at all; it seems she'd followed him, when he left the city, and had taken up a spot near the ranch, likely to watch the fireworks, when he attacked. Unfortunately, following him only by mundane senses, she loses track of him, when he teleports, and won't be able to track him down, as she'll likely think he's still inside, unless he gives her some indication.