Really, the only way you'd KNOW it was Nick Fury in the Riff-Raff costume was because, well, it was a costume and so completely unlike him in every way. He'd even traded out his patch for a sequined one from a costume store. Because he could. If he didn't want people recognizing him, and really, he didn't, he was gonna treat this like it was a really, really deep cover mission.
So far? So good. Well, the part with Hill being there was kind of mortifying. But fuck it. He was also carrying a tote bag full of toast and other props.