Though he might remember manners, the asset isn't exactly used to having them used at him. He had already started to turn away when Rorschach spoke, and he looks over his shoulder, expression vaguely baffled. You don't thank assets. You just assume they're going to look after you. (Or do what you say, whatever.)

He hesitates a beat more, then nods awkwardly and continues towards the door. "There is a garage. There might be useful items in there."