Even before she stepped across the Anti-Apparition wards surrounding Augustus" property, she had a plan in mind. It might have been a surprise for some people to learn that there were actually times that Gryffindors made plans before they did something rash and dangerous, but they did. She knew her house was being watched by some of Rodolphus" incompetent goons. Maybe he'd been able to secure the loyalty of some of the dimmest Hogsmeade guards. Antonin claimed it took them over an hour to even notice he was in the house when he snuck in before. She wasn't planning on being there nearly that long. Once she had Oliver's trunk in her possession, she had every intention of getting out of there.