No, of course not. But the problem comes, and I'm not bashing, but most cops I know are that "A-type" personality and they don't take kindly to non-LEOs telling them how to do their job, so if they ignore you're polite attempts to inform them that they're overstepping, guess what? Later down the line they're the reason for a major abuse of power lawsuit that could cause their job- but hey, I tried to warn you... Kind of situation. Obviously you don't fight it right then and there unless absolutely, 100% sure you're in the right, necessary, but nothing wrong with saying "hey, this is too far, pump the brakes or you're gonna get flippin' sued."