Poser for sure. A real "roadie" would not even be in the conversation; he would have been long gone.
When I go to pass someone on the MUP, I expect it to be a job. Sometimes it's not. Sometimes the person just disappears behind me. But, oftentimes, it is a job because the guy refuses to drop and wants to hang. It stinks, because I hate passing someone only to have them pass me again a minute later. So, then I have to push it.
Just say'n....expect that to happen.