Kaz had enough of that mist blowing in his face so he began to get up off the ground. He was unsure how to respond after being thrown in like that, he didn't even need to show his ticket or say the phrase to get in. They obviously wouldn't just throw someone in a private area like that. They were probably expecting him or maybe there's something more to this. Either way after he got up he looked for the one who threw him in there.