I went in around 4pm and other than the dog handler, who was clearly power tripping, everyone was fairly chill. I think after 2 hours of solid checking people on a whim and not finding anything, maybe they'd lost some of their vigor.
I doubt you'd get much out of complaining, although the searches were filmed, so you never know. My feeling is, unless you could prove the handlers were either targeting people or straight making sh*t up, there's little that can be done.