CSC interview questions

The interviewer called 20 minutes late with no explanation. This was my first phone interview and I was prepared for one of the traditional interview methods I had read about. It started out with the interviewer saying "I have your resume in front of me, please expand on the bullet points". I suggested that I start with my accomplishments. Halfway through, I asked if this information was what they were looking for. Response, "I am taking some notes". At the conclusion of accomplishments, the interviewer jumped right in and said, "You are over-qualified, and 'people like you' will work for CSC for a couple of months and then leave for another job". I told this person that I was receiving a pension, that my skillset matched perfectly with the job qualifications, and I was looking for a position where I could hit the ground running and become a contributing team member quickly. "I'm sorry, but I don't think you are an appropriate candidate. We'll keep your information on file". Nevertheless, I was disappointed with their response and feel that their mind was made up before interview took place.