GM Financial Customer Account Representative interview questions

I found out about this position by applying with a local staffing agency and thought it might be a good fit. The interview was set up and I showed up at the appointed time. I was asked a series of questions regarding my past experiences and scenarios. Standard interview questions. However, one of my answers was humorous to the one or the interviewers and she covered her mouth as she looked at the other manager writing down what I said. I knew them, that I probably didn't get the job. What a joke and complete waste of time. My time.

The interview is very straightforward, they ask general situation questions ex: when you went above and beyond your job and what unique thing you have to offer etc.