I’ve gone thru DUI checkpoints before with expired tags/inspection & the cops let me go. Usually they just give a warning. They are there to get people driving under the influence, they are not usually worried about vehicle code. If you are a dick to them, then they will throw the book at you.
So, in your opinion, waiting a few moments for the Police to conduct a DUI checkpoint is not worth the effort? If it saves one life, it is worth it. Remember - the Police are just doing a job, they are not purposly trying to be “douche bags” as you put it. If you respect them, they will respect you.