Hopefully someone has experience to help me with 2 questions here.. I am travelling San Antonio SAS to Sacramento SAC. In SAT, can we board earlier than just before the 0245 departure? I think the train is in the station for quite a few hours before departure. I believe the passengers coming through from Chicago can remain on board, but have not been able to find info on those boarding in SAS. Next question, we get into LAX at 0535 & depart 1010. I think it is the same train. Can we remain sleeping, in our sleeper, & have breakfast, then stay on board for departure to SAC?