Car Stall problems of the 2013 Tesla Model S

It was a 2hr45min drive into work on an icy blizzardy morning, driving my 2013 Model S rwd p85 with 90,000mi. Have owned this car for 4 yrs. Made it to work safely and the last 6 feet in the parking garage, going about 3 mph pulling at a right angle into a parking stall. Had brake pedal depressed, shifted my foot to tap on the accelerator to inch forward and next thing you know, car is accelerating full throttle into a cement wall. Crashed head on and airbag didn't even deploy. Sat for a moment to catch my breath and try to process what happened. Sent "bug report" on to Tesla central from the car. The dashboard had prnd lit up in red and the vehicle would not go into drive or reverse. Accelerator pedal was completely limp. Zero resistance. Thankfully, no other car was around me. Called Tesla service and they told us to reboot the car. We did, but accelerator pedal remained completely unresponsive. Had to push out of the 5 story garage and tow it to an autobody shop. Filed police report. Reported to local Tesla service center immediately. A few days later, we heard back from the Tesla rep that said that report showed no malfunction. According to Tesla accelerator went from 0% to 88% suddenly, implying "driver error. " yet they also said the brake was tapped and then released prior to impact. This does not jive, why we a person accelerate, tap the brake then release? skid marks from rear tires left on garage floor. Tesla won't release data. We do not want to accept this report and this is not what happened during the crash. Today the auto body shop informed us that they were curious why the car is not driveable. After being reset, they discovered the accelerator pedal is broken. Experience during the crash, combined with very unusual car behavior, and a broken accelerator refute Tesla's claim of operator error.