Not unique to Philly. I had a ticket cancelled on me at DFW in May when I was told to "fly another airline" by an agent. I told him i was taking a pic of his ID and writing a letter to customer service. He came at me, ripped my tags off of my bag (I was transferring from a TPAC to domestic flight, trying to get an earlier connection) and told me he was canceling my ticket. He did. Station agent wouldn't tell me why it was canceled but said I could buy a new ticket on the same flight. $600 later I got home. Twitter was no help. No there isn't anything sordid to the story. I'm still in shock two months later.