Hardly believable

What this guy did is not an infraction it is a misdemeanor. The cop doesn't have to witness a misdemeanor for a charge. You will have to have the plate number and be able to identify the driver. Then meet an officer at the magistrates office to write out a sworn statement. The magistrate will then charge the driver if he finds probable cause. Really no different than a minor assault charge. Sounds to me like it meets careless and reckless elements.