I would get out of that bus and choke him out with his scarf. After he woke up, I'd choke him out again, and again, and again
It will get added effects in editing. I recognized some of the 'cue' alarms where some CGI's/effects will be placed. They will be filmed at a different time and then all put together for a final sequence. We did the same exact kind of filming (almost) in a Chuck Norris movie I was in.