Everyone keeps asking why he is smiling in all of his mugshots like it's so unfathomable, and it's very simple, this is the face of a man who has thus far never suffered a single consequence of any of his actions and is fully confident he won't this time either.
In his long history of police interactions never gotten more than a stern finger wag. Why would he think he would get any worse this time? Is his mind he is immune to consequences and everything will return to the status quo sooner or later.