Former employer and no formal interview

PTC had several phone interviews with me, leading up to an on-site interview. The company flew me to its location in Atlanta, where I had a series of three or four interviews that spanned most of a day. The interviews with employees with whom I would be working went very well, and I was told midway through the day that I had made a good impression and likely would be receiving an offer. The final interview of the day started two hours late with no explanation for the delay. It was with a division director who was very casual and brusque. She did not seem to have any interest in interviewing me, and I later learned from another employee that she always had intended to fill this position from within. She never had a real intention to consider me, and this lengthy interview process and my trip all were a waste of my and PTC's time.