When he first joined the Anaheim PD’s Traffic Unit as an investigator in 2016, Doug Elms decided to take his new colleagues, Investigators Rick Alexander and Gonzalo Perez, to lunch. No sooner had the group sat down with their menus when their phones went off. A motorist driving nearly 100 mph down Harbor Boulevard had spun out of control and rammed into the front of an OCTA bus. His car had gone into a centrifugal skid, and he was impaled by prongs on the bike rack on the front of the bus. Several of the 15 or so passengers inside…