I have same issue two day ago what I did was ran the car to empty the remaining gas tank than put new gas in, replaced air filter and carbin filter. Disconnected negative battery cable for 10 seconds then reconnected to clear the warning lights. Today I drove 200 miles everything fine to me. I am going to buy a new gas cap because I think my gas gap is the main source leading to this Xmas lights.
I think you should try this first to see if it work for you and try to get your $360 back from that stupid dealer whom service your car.
