(Never mind; I was a little hasty with the questions. General Amtrak CS via email says no overnight, Amtrak CS at the station confirms 24 hours. Official word, for future reference. Thanks again, guys.)
I know there are plenty of threads regarding temporary baggage storage, but I haven't been able to find an answer to my specific question (so please excuse yet another post on the topic).
I plan to take Amtrak for the first time in June from the DC area to 30th St. Station in Philadelphia. I've...