Lutron Electronics Engineer interview questions

They sent an email from a automated account to set up a time for an interview. Once my interview came they began by asking me technical questions. (of which they made no mention of in the automated email) They had no interest in me as a person or as a professional. At the end they didn't even try to tell me about the position very much. It was a very confident move by a company that designs light switches. I felt disrespected and immediately pulled my application from the company