Sir, this review is the first I have heard of a problem after we worked on your car 2 weeks ago. If you are having a problem, please bring the car back to us to take a look. There was a lot of oil spilled on your catalytic converter and will take a while to burn off. There may also be another oil leak that was masked by the enormous leak from the valve cover gaskets we replaced. I am happy to take another look. Please call me tomorrow.
Sorry about that small problem Chris. Sometimes gaskets can pop out of their groove while seating. But I am glad that we also noticed you were very low on oil when you came in, diagnosed your other problem correctly, and got the gasket fixed for you very quickly with after hours support. See you next time.