Well, we both traveled today.
My daughter was a little bummed that she couldn't pick up her tix with her AGR card at the Quik-Trak, since I bought them together. Next time I'll have to make two seperate purchases to see if she can pick up her own.

We didn't have much time, so I didn't figure out how to print out only one person's tickets. It went right away to printing all four of the tickets for the roundtrip.

But, since they are Pacific Surfliner tickets; they don't even have a train number or specific time and date.

I was mostly wondering if I didn't pick them up, would they "expire" when the date I had reserved had passed?

I think I'd generally just pick them up, since they will get used within the year, we go to about 40 games a year by train.