I went to Johnny D's in Somerville, MA to see Pegi Young & the Survivors, ended up seeing Neil Young as well for the entire 90-minute set. Excuse the brevity of these clips, my focus was on the experience, not the documenting.
http://www.rollingstone.com/music/videos/neil-young-debuts-new-song-at-300-seat-club-in-boston-20130912
http://www.bostonglobe.com/lifestyle/names/2013/09/12/neil-young-makes-surprise-appearance-johnny/cDlLqLCgNftYbKFue2QUOO/story.html