Most definitely. The sleeper I was in was added at Memphis. A switch engine coupled up and pulled us beyond the yard throat. When the Panama pulled in another engine was moving in behind the observation before the train had stopped and then removed it. My car was quickly added, then the observation and we were off. Quite a performance done in 12 minutes.Sometimes a switch engine was part of the process, a thing which Amtrak only has available in a few places.
But in Amtrak’s mail and express era we lived in Jax. A switch engine was based there to handle it but it also switched out the east and west coast sections of the Silver Star.