I think they just torqued it too much. He even tried to get away from what he did. He said it was damaged by the prior shop. But I was sure the oil change was done well in my prior shop and I had not seen any dripping oil on my garage floor. And he told me that after he finished the oil change. If it's really done by prior shop, he would tell me before he went ahead to perform the oil change, right?

Then he said he will repair it in the next oil change and just put some silicone around the plug. I will never send my cars to them again. That is not the jiffy lube quick oil change shop. They specialize and work only BMW.