general problems of the 2015 Audi Q7

On 7/4 as I was merging onto the highway I was accelerating to merge onto the main lanes of traffic. I pressed on the accelerator to pickup speed, but when I let off the pedal the vehicle felt like it was continuing to accelerate similar to being on cruise control. I felt like I did not have control of the vehicle. I pressed on the brake pedal and let go to see if it would disengage the acceleration, but it did not. I then continued to press down on the brake pedal and pull over to the emergency lane and park the car. I had total of 6 passengers in vehicle with me, 4 adult and 2 children. After being pulled over I checked to insure the pedal was not stuck on any floor mats, and it was not. I was lucky that there was no traffic on the holiday to avoid any collisions. I carefully resumed to my destination and the vehicle operated normally. I reported to Audiusa via online chat requesting advice. They suggested I contact a local service center who would charge me to diagnose the vehicle. I have not taken any steps yet given they typically will charge me regardless of determining any issues and identify some other upsell opportunity for service. I'm wondering if anyone else has reported this experience for an Audi Q7 2015 and any actions taken. Also if there is any government programs for safety inspections for unintended acceleration of vehicles. I would have expected Audi or any manufacturer to offer a complimentary inspection given the safety concerns. Thanks.

My vehicle completely shut down while I was driving it 60 mph behind a semi truck and between two cement barriers. I have it on video, it is one of my problems I had with my car to say the least. It happened once more while I was not moving, had it in the Audi dealer for the second time. After I brought it home, it wouldn't shut down. I also have that on video. The videos are too large to upload, but everyone that drives an Audi should see these. I am glad I am alive to tell my story.