Checking for a leak

I called jakes auto glass because my windshield had been leaking with all the rain we had received in early June in Bismarck. They were so nice and helpful when I called and said they could fix it for no charge! I was excited because I love anything free! So four days later I went to my appointment pumped to not have a wet and leaking car. When I walked in the guy behind the counter was INSTANTLY so rude to me. I couldn't believe it. He told me it couldn't possibly be my windshield getting my floor mats wet and he made me feel very dumb. I asked if they could still check out while I was there because I had physically seen my windshield leak on numerous occasions. He reluctantly agreed. Then they proceed to tell me that I was right and to fix my windshield it would cost me "off the top of his head" at least 500 plus to fix. Needless to say I'd never go back here because they are so so SO RUDE. I would never recommend this place to anyone ever.