Pretty sure that was his original point.. the requirement to have a fancy little pink slip in this day and age is a tad silly no
And my point is, it doesn't matter whether you or he thinks it's a tad silly. It boils down to what the law thinks. You can make whatever argument about how in the "dark ages" the law and MTO, etc are, but ultimately the law is the law. You must have the paperwork, end of story. Feel free to argue with said LEO or JP. Don't be surprised if they don't take you seriously.