Filled up with diesel and drove 3/4 of the tank

My daughter filled the gas tank of her brand new 2012 rav 4 with diesel and drove the vehicle until there was only 1/4 tank left. Most of it was interstate driving. Naturally she noticed smoke. The check engine light came on as did the Trac Off and 4WD warning lights. They have remained on. I took it to AutoZone and they ran diagnostics and got the error codes: P0300(Random Cylinder Misfire Condition) and P0301(Cylinder 1 Misfire Detected).

I called 2 different Toyota Dealerships and neither of the service people I spoke with had ever heard of someone driving an entire tank of diesel out. They said that with that much driving, the catalytic converter could be damaged, along with other sensors. My plan of action, since there was just a little diesel left: have her drive it until the fuel light comes on, then add some Lucas Fuel Treatment and fill it with gas. Run it about 1/2-3/4 empty and then disconnect battery cables and reset warning lights to see if they remain off. If not, take it to the dealership. Thoughts? Ideas?