2017 Hyundai Sonata Plug-IN Hybrid engine problems

First extended drive of new car, check engine light came on. Took it to dealer for service, was told I had "bad fuel" that they tested a sample and found e85 (ethanol) in it, which is not covered by hyundai new car warranty for plug-in hybrid electric vehicles. I paid $828 to have fuel drained and replaced, fuel injection cleaning, and decarbonizing and throttle body cleaning. Check engine light went away, but turned back on a few days later.

This is my first time buying a brand new car in my mid 40's. I purchased the car (plug in hybrid) with only 25 miles on march 15, 2018 and after 7 days and 353 miles later, upon driving and coming to a stop in the city of philadelphia, pa, the car stalled and lost power. Warning message "check hybrid system." I had to step on the gas pedal all the way down to the floor and waited a second or two in order for it to move at a turtle's pace. Fortunately, I was able to find a safe spot to park the car.