Robert's Test Only Smog Check shares space in the Creekside Business Park with a number of automotive service businesses. It's sandwiched between Cadillac GM Specialists and Consultatech. It may be small but it conducts same-day smog checks on all vehicles. ASE-certified technician Dan has been running a one-man show at this location since 1999. This is a full-service smog check facility tucked into its own corner where appointments aren't necessary, service is thorough and efficient, and prices are reasonable.