A Waymo robotaxi parks next to The Broad Museum in downtown Los Angeles.Los Angeles Times via Getty ImagesWaymo, Alphabet’s robotic taxi unit, is expanding access to the service in Los Angeles by eliminating a waiting list to download the app needed to hail its sensor-laden electric vehicles. The company hopes the move ensures that ridership growth continues at a rapid pace.Starting today, anyone in the second-largest U.S. city can download the Waymo app and book rides, with one caveat: the service is only ...