Steering Column problems of the 2013 Volkswagen Jetta

While driving my 2013 Volkswagen jettta gli, a part fell down by my feet hitting my foot. Once parked, the part numbered 1k0953527d was found on the drivers side floor mat. I called my local dealership where I had bought the car (new) and sent them a picture of the part. They said they believed it controlled the column lock while in park, however my wheel still locked in park with the part not in place. The next day, while driving in an alley, my bumbped my key chain while scooting forward in my seat and my car turn off, not allowing me to turn it back on until it finally came to a stop and I was able to put it in park. The service team had their most experienced team member on hand open the steering column and said that the part must have fell out; for reasons not known. They also said there was no indication of tampering.