From a "Neighbor" of D.C.
I live close to the area known here as NoVA (Northern Virginia) and sometimes have to cross the river into the District or even (gasp!) into Maryland. I avoid going to either one as much as possible, but sometimes it can't be avoided.
I am, not just "feel" but AM, so vulnerable at those times that I can hardly stand it. We all need nationwide recognition of all state's permits everywhere in the country. And I don't feel that any federal, state, or lacal government property is sacred and should have different regulations.
Anti's try to use the argument that we license cars and drivers, so they want to license us right out of existence (or is it just our firearms and 2nd Amendment rights they want to erase from existence, I get so confused listening to them!) We have the same argument from our perspective - driver's licenses and car tags are recognized the same in every state, so why not our CCW permits. Are there special places we can't take our cars in D.C. What kind of logic is that? Traffic laws are the same from state to state.
Just imagine the havoc it would create if every community could make up their own color choice and meanings for traffic signals. I say let's try that for a while and see how it works out. Of course, elitist legislators and entertainers would be free to ignore whatever they felt like ignoring. Sounds familiar...