It’s the last-ditch effort of the California Highway Patrol to keep its lights on for a couple of hours as a backup to the usual four-hour shutdown of freeway freeways.
The agency’s exhaust-control system has been activated twice in recent days as traffic has grown more congested, the latest time Friday night.
The system is designed to keep cars from starting the engine.
“This is really an emergency and this is really the last resort,” said CHP spokesman Johnna Smith.
The CHP is asking for help from the public, so anyone can submit their photos to be used in an interactive map.
The first photo submitted will be used for a Google Earth visualization of the area where the exhaust system is activated.
If the image is approved, the vehicle will be put into service on Saturday.
Anyone with information is asked to call the CHP at (877) 4-HELP.