Indeed, Phil also joined them a day earlier (Nov 27) in Arnhem, NL (Boys Are Back was played there as well).
About Vince Neil appearance:
I found the facebook comment, the person stated he saw the show after Atlanta (in Pelham), on September 28th and Vince Neil made a guest appearance. No particular info on the song played, but Jon is also playing guitar on the pics, so it's most likely YGLABN or an extra song, probably a cover.
From all this info, I say the photos are from Atlanta (per the photographer stating they are from the Omni Coliseum) and Vince Neil also joined them there - Alabama and Georgia aren't that far apart so that is pretty possible IMO.
