Sterling Commercial Credit interview questions

I had a phone interview with one of the founding partners. He sounded very excited, loved my Alma mater, talked about how beneficial it would be for me to come in, meet the staff, learn more about the position, etc. I come in for the interview, and it is with a completely different person. He informs me the position had already been filled, (less than 5 business days after the phone interview) and he would be filling in for the partner I originally spoke to. It turns out I was interviewing for a different position than I had applied for, and had been told I would be interviewing for. As one could guess this left me completely unprepared, and off balance. The entire process felt very token. He spoke to me for about 25 minutes before informing me he had nothing left to say. It was very apparent he had very little interest in being there (he even yawned during the interview). As I was leaving he had the audacity to say "I hope you didn't take a day off for this". In all honesty this was one of the most unprofessional and disrespectful business experiences I've had. I appreciate the time they gave me, and the consideration that was given, but what I appreciate most is the indication they gave me of how they conduct themselves, and conduct their business. I have not heard back about whether or not I will be offered the position, but in all honesty I have no intention of working for this establishment.