Gas Recirculation Valve (egr Valve) problems of the 2016 Hyundai Santa Fe

I had my 2016 Hyundai Santa Fe serviced by Hyundai for a tire change and oil change along with the recall update on Jan 17, prior to going from st louis mo to wichita KS. I am a traveling nurse, my contract was starting Monday the 20th. I was advised the recall was a system update for improperly working sensors. My motor blew 2 hours into my trip on Jan 18th while driving on the highway. I heard a loud popping noise and felt it as well. My vehicle immediately started to smoke. I pulled over to the side of the road, oil was pouring out the vehicle. It was 30 degrees and im stuck on a 2 lane highway. I was towed to the closest dealer, where I was informed they would not be able to get a rental vehicle since the rental location was closed for the day. I could not get a loaner vehicle due to the amount of miles I had to drive. My only option would be to purchase a new vehicle. I was stressed and very overwhelmed, thinking about my need to get to wichita KS and upset that my vehicle that was just serviced by hyndai had blown up on the highway. Within an hour of leaving the dealership, finally having a moment alone, without a salesman in my face, I realized this was a mistake. I called back to return the vehicle but my salesman was gone for the day and the dealership was closing. I text my salesman on Sunday advising that I want to return the new vehicle and just get the rental car and my vehicle fixed, as Hyundai roadside had promised. On Monday Jan 20th I was advised they would not reverse this sale and I could not get my vehicle back. Now I'm stuck in a vehicle I do not trust with a higher payment, higher insurance premium, feeling completely taken advantage of. I do not trust the Hyundai brand. Several injuries have occurred to others due to their lack of honesty. There are many posts online about Hyundai's poor business practices. The recall is called a campaign.