Yes, I think without any doubt they were collected because history tells us they were. The account of the Sudarium is considered very credible and reliable.Do you really think that they entered the tomb and collected those cloths under the circumstances? That is an absurd notion. They were more interested in seeing the Risen Lord, not His burial cloths which He had left behind. Chances are that the two angels who had come to the tomb removed them so that they would never become "relics".