Considering that the Fernley Depot used to be right across the street from us, you're right. Alas, the speed limit through Fernley on the UP line is 60 mph and they're usually going that fast. And of course they wouldn't be allowed to do the stop at all without a fully ADA-compliant platform. (That's why UP went and tore out all of the passenger platforms on the former City of Portland route within days of the Pioneer being discontinued. Older platforms could stay in use, but once the platforms were removed, you'd need to build new, modern-standard platforms at vast expense in order to reinstate service.)

The Zephyr used to have a stop at Sparks — I used it just before Amtrak moved the crew-change point to Reno and discontinued the stop — and if they did, we'd be inclined to try the long-term-parking thing in the Nugget's garage paired with a one-night stay, which would not only be much cheaper than the $200 round-trip taxi ride, but also more pleasant.