Lemon in Black Paint

We have had our Saturn Vue for 6 months. And we have taken it in for minor repairs 6 times. The worse part is that the service department gives false information causing us to make more trips to fix the same item. Hubby didn't get the back hatch rubber covering fixed on Friday, due to their miscommunication. He has to return with it when the part arrives. But that's okay, because when we drove to church yesterday the oil light came on and stayed on. After church hubby checked the oil and it is fine. Oh, and he found a loose bolt lying beside the engine! Now where does that go? What is not attached this time? So another trip to see them, another adventure. Hubby is threatening to put a lemon sign on the side of the car when he drives it there the next time. Is this some kind of test for the owner? For the service department?