I just saw a video that touched on this. YouTuber Steve Lehto, a lawyer in Michigan. I think the case came maybe from Wisconsin but a judge ruled that cops could enter and search a home based on nonverbal gestures. If you want to know more check it out since I don’t think I can give all the details correctly from memory. What’s funny is I saw things about treating cops like vampires in the comments. They really should need an explicit invitation (or a warrant) to come in.