EKW in DC, I go through that very same intersection every morning (heading North, then N.E., toward DC) and 2 to 3 times a week in the afternoon (I like to change it up a little an continue on the MVT to Slater's Lane the other days). I think you were certainly in the right and, your reasoning is correct. In any case, nobody should be passing you on the right and they certainly shouldn't act/speak aggressively toward you. I don't like that intersection since: 1) you have no bike lane option while waiting at the light or navigating the intersection and, 2) it's such a long, sweeping turn that you're exposed to potential cross traffic if you don't hustle to get through it. Once I'm on the other side of it I try to stay in the bike lane but, am often buzzed several times on my short jaunt down to Duncan Ave. Depending on timing and traffic, I've even cut out that intersection entirely by cutting through the (closed) service station parking lot, past the Suntrust-on the sidewalk, then, to the southbound lane of traffic on Mount Vernon when safe. On the other hand, I sail through that intersection in the morning, of course I'm doing that at 5:50 or 6:00 in the morning, there's little traffic at this time. It's funny, I've been riding into DC for 8 years and have only encountered aggressive/angry drivers near home, never once in DC. I still can't figure out what is so upsetting about cyclists to drivers, we may only slow them for a few seconds whereby they immediatly pass us and continue on unfettered. I would certainly recommend reporting license #'s of such drivers, if nothing else it could increase police patrols and/or encourage improved traffic devices for cyclists. Hope your ride home today is uneventful.