So, in the not-so-distant future, we have a very short jaunt on an Amtrak Capital Corridor train as part of a larger itinerary (that, a BART ride, and a stroll are saving us a car rental here). However, we're not precisely sure what time of the day we'll be catching the train (due to a tight flight connection earlier in the itinerary), which raises a question about how the Capitol Corridor is ticketed, since we'd much rather buy tickets ahead and have everything covered, than flag down the conductor on a short ride like this.
Are Capitol Corridor single-ride tickets bound to a specific run of the route on a specific day, or can you use them for any run on a given day, or are they not bound to time and date at all? (i.e. they're good for one ride whenever, like a single-ride transit pass of some sort would be).