3 interviews with multiple different people over three days witch kinda stunk do to having to go up there multiple times in one week then the main person I interviewed with last was super late

Local HR guy brought me in for an informal interview. He basically asked me questions relating to my previous employment. I was asked to return at a later date to interview with the hiring manager. That's when things took a turn for the worse. First, the man was chewing gum during the interview, something I felt was very unprofessional. Then came the only three questions he asked me. "Are you married? Do you have any kids? How much money does your wife make?" Evidently he wasn't aware such questions are forbidden during an interview. After pinning me down to a starting dollar amount, he hired me. I left feeling a sense of desperation in his hiring of me.