[El Gato]

The city requires that legally registered revolvers be kept unloaded and either disassembled or secured with trigger locks, unless the owner reasonably fears immediate harm by an intruder in the home.

This is a direct flouting of the Supreme Court's ruling against the preexisting rules which said the same thing.

I would think that one could obtain an emergency restraining order against these bastards.

[contemplator]

"..reasonably fears immediate harm.."

I suppose this is the key phrase in the what you cited. Nightly news reports of armed robberies, break-ins, homcides, rapes etc prove that armed break-ins can occur a) at any time and b) regularly do in DC; therefore fears of immediate danger should be perpetually justified. Of course this interpretation isn't what the people crafting the ordinance had in mind, but is true nonetheless.