Los Angeles has a love affair with car chases on TV. But delivering traffic cam footage to your cell phone? That’s the idea behind FreeTrafficCams.com, which has rolled out its product in a few cities across the country. From the list of their upcoming cities, they’re definitely in the “expansion” mode.Starting Tuesday, people with the right phones can download the application, then click and pick from more than 270 cameras aimed at the city’s streets and highways to view.By “right phones,” by the way, we don’t