I would prefer to see a letter to the Attorney General saying, "Anyone involved in enforcement of laws restricting firearms should be prosecuted under 18 USC 242." But that is way, way too much to expect at this time. For the time being this is a decent enough start.

Of course I expect that the ATF response, internally at least, be something along the lines of "Who are you to tell us what to do? You are a mere subject. We are the King's men."