Subuki
First time out of the vault
Elder Lyons specifically states that they're watching out for the locals, which his superiors back on the West Coast have shunned him for. D.C BoS act more like Paladins of justice than a military sect.
And D.C was not utterly destroyed, many people were still alive after the initial blast, there were plenty of audio logs (that I have found so far... They're spread around in some crazy places) that shows this... Most notably the girl watched her dad disintegrate infront of her only leaving his shadow... Or the other girl who was running to get inside a vault, but was denied entrance... Or there was even a Vault-Tec mail in someone's mailbox that denied whoever lived in that house a spot in a vault(even going so far as to retain the fee they paid to get them on a "waiting list")
So there were plenty of opportunities after the bombs drop to try and maintain order.
And D.C was not utterly destroyed, many people were still alive after the initial blast, there were plenty of audio logs (that I have found so far... They're spread around in some crazy places) that shows this... Most notably the girl watched her dad disintegrate infront of her only leaving his shadow... Or the other girl who was running to get inside a vault, but was denied entrance... Or there was even a Vault-Tec mail in someone's mailbox that denied whoever lived in that house a spot in a vault(even going so far as to retain the fee they paid to get them on a "waiting list")
So there were plenty of opportunities after the bombs drop to try and maintain order.