The text itself is respectful enough. The problem is more the subtext: "You are the enemy, and are not be trusted. Therefore it is only possible for us to interact under these precise terms."
Every time I've been pulled over, the police office has walked to my passenger side window with their hand on their sidearm. I'd say the subtext starts way before mentioning any actual rights I might have (and that the Supreme Court has stated that must I explicitly use in order to keep)