Packed inside an SUV and heading to Las Vegas, employees of CaptureProof, a San Francisco startup, are part of a time-honored technology industry tradition — attending the giant consumer electronics show that takes over the Las Vegas strip every January. Starting Monday, more than 180,000 people are expected to attend CES — the show once know as the Consumer Electronics Show — with about one-third of them international visitors. There will be 4,000 exhibitors in every conceivable tech category — gaming, self-driving cars, digital health, digital sports, drones, robots. Outside official CES, many companies set up their own events in hotels throughout Las Vegas. The result is a crush of people and cars, a cacophony of sounds and logos, as everyone tries to get each others' attention. And that…