I might be flying out of DCA with UA tomorrow maybe 2 pm flight. Expect any problems at that hour? The purple drop-off only makes sense if you are not checking luggage? I am thinking of a scenario where road traffic is really bad because of back-up into T1 like I noted in July. I was driving a rental and dropping off passengers and then afterwards dropping the rental, so I managed some aggressive maneuvers to get around the mess.