On the front page of Metro.net:
Put Metro’s Dodger Stadium Express in your Line-Up
Take advantage of a winning combination to reach Dodger Stadium this season. Just Go Metro to Union Station and connect with the Dodger Stadium Express. You won’t have to fight traffic and you’ll help reduce air pollution. Best of all, your Dodger ticket is good for the fare!
Union Station is served by Metrolink, Amtrak and many Metro and municipal bus lines, plus Metro Rail’s Red, Purple and Gold lines. So it’s easy to leave your car at home and connect with the Dodger Stadium Express.

We did this on opening day. We got in line at 11:05 at Union Station. We got into the stadium just in time to see the first pitch. Getting back to Union Station was a bit faster – just under an hour and a half. Both of those express trips took us longer than if we had driven ourselves, with the added bonus of bus nausea!
I know that was opening day traffic, and maybe it’s better on other days. It seems to me that if you’re going to offer an “express” service, you should probably have an “express lane” for that bus to go in!