Another note: Chrysler also bows to "He Who Writes the Check."
Large fleets can get just about anything they want. It could be as simple as the check writer at AZDPS liked the look of the drilled wheels better than the big flat blade spoke wheels and specified the AWD wheels on their purchase order.
The older AZDPS Chargers have the older spoke wheels (like Jonathan's example of the swap from the older generation kit), but not the new Chargers. AZDPS may have had experiences with the flat-spoke wheels they didn't enjoy. I don't know, but I'll ask around.
Back to my mention of the ventilated hub caps, we had serious brake fade problems and Chrysler rushed the ventilated caps to us as a fix. They later incorporated them into police-spec production.