Some exemptions are easier to live with than others. Like cops speeding when they aren't in pursuit or responding to an emergency call. As if the speed limit were some brick wall function where magically life goes from safe to 'yer gonna die'. Yawn.
It might be more illuminating to think of other abuses to develop the proper sensitivity to this issue.
How do most of us feel about our public servants being able to lie to us with no recourse, yet it is a crime if we make even an inadvertent mis-statement to an LEO (just ask that big bad felon Martha Stewart)?
Or perhaps closer to 'home' for anyone who flies, how do we feel about TSA being able to legally perform what would be sexual molestation for anyone else (being instructed to press until feeling testicular resistance). I can't imagine any self respecting LEO doesn't bristle at that, particularly when the TSA's own agents and audits indicate the whole endeavor is little more than expensive security theatre.
Going back to guns the other side of the coin is that legal exemptions for cops just shows that all of the arguments for civilian disarmament are bogus, since if everything the gun phobes said are true about these dangerous implements, then I sure wouldn't want them in common use for daily interaction with the public.
Imagine if the drug laws gave exemptions for officer consumption of LSD, heroin, and ecstacy, would that be reasonable? I can't imagine a job related use for that exemption.
But the job related use for short barreled rifles, adjustable stocks, full capacity magazines, suppressors, small concealable back up guns, etc. applies equally to anyone who might want to protect self and property under varying common circumstances (business owner, traveller, isolated rancher, victim of natural disaster, person of smaller stature, etc.)
Lautenburg/Violence Against Women Act set the precedent, but of course that law applied to real crimes with real victims. Possession of a common use tool shouldn't be a crime for anyone who is behaving peacably and hasn't had their rights reduced via due process. If the police are subject to the same laws, it will help them get on board for defeating such symbolistic non-sense and abuse of the law.
A police state is where there are vast discrepancies between what is lawful for a citizen and a government agent. It's a bad idea to expand that gulf to where our delegated agents and public servants become defacto masters. L. Neil Smith's essay applies equally to LEOs as it does to craven hypocritical politicians:
http://www.lneilsmith.org/whyguns.html