Not so much police officers, I would say. I mean, there is a big segment of America that respects cops, but everywhere I've seen, and I've talked to a lot of people nationwide, the general consensus is that cops are, well, pigs, to put it lightly. Racist, money-grubbing, above-the-rules types. Though as someone living in Spokane, I'd say I have a pretty good
reason behind such thinking.
That said, the reverence of soldiers is a nail being hit on the head right there. You can't dare say a thing against "the troops"* without invoking the wrath of everyone around you. The others, I'll only state that a lot of them depend on the region you're in. The USA is a very regionalist country. Even just twenty miles can separate a vast political gulf**.
*: Remember when it was "the American boys"? I don't. I was way too young. But when my grandfather was alive, he used that term, and research shows it was pretty common back then.
**: Case in point, again drawing from local experiences, Spokane vs. nearby Coeur d'Alene. Spokane, despite electing McMorris Rodgers, is pretty comparatively liberal, even going so far as to support gay marriage, while Coeur d'Alene is practically Nazitown. At least from my experiences living here.