The press release for the USA-Guatemala game had a blurb promoting individual game Crew tickets at the end of the release and listed only phone and internet options (the same as the USA game which I believe is not being sold at the stadium box office). Did the Crew do away with the box office entirely or can you still buy advance tickets at the stadium during normal business hours (I often make a stop there if I'm in Columbus on a weekday to buy tickets without TM fees or day of game markup)?
I'd be absolutely shocked if they did away with the box office, though the top 2 box office employees have both left the organization since summer 2015. I'm guessing it was simply an oversight.