All of those things are accurate ~ that still doesn't stop us from driving the posted speed limit. :)
I learned long ago ... take 5 .... 10 in a pinch ... any more is risking a ticket.
And watch the road like an infantryman. If you see someplace that is a good ambush site, sure enough there is a highwayman ... oops ... a highway patrol officer, waiting to radar you and make off with revenue.