I don't know if you realize this but you don't have to break a law to get pulled over. It goes by various names, but welfare check is my fave. (Hey, don't flame me ... I just report the news, I don't make it.)
I for one am glad the cops cared enough about Larry and his van to check on him, but hey!! that's just me ... I like Larry and would hate for anything bad to happen to him.
So, "probable cause" is no longer needed to stop or detain? Police Officers can stop anyone they want at any given time and demand that said person prove they are not breaking any laws?