I am surprised. The CHP Custodian of Records has one job, to sit there all day and respond to these requests. They are usually very good and prompt at responding.
You can bring the issue up to the court but I suspect all they will do is give you more time to obtain the information or give you and order to compel.
May I suggest you call the CHP office during the day and ask to speak with the Custodian of Records? It will usually be a Sergeant. It is possible your request somehow fell through the cracks or was sent out but got lost in the mail. There should only be three relevant items to your case. The rules of the game do not require the Custodian to be a mind reader and instead, you must specifically articulate in writing each and every item you want. There are three items that are relevant to your case. First, there should be the officer's copy of your citation. Next would be the MVARS audio video recording from the patrol car. It is unlikely this caught the violation as these only record when the emergency lights come on, but it would have captured the officer's interaction with you. This is important as drivers often admit guilt or instinctively apologize for the violation when contacted by the officer. When the driver claim innocence in court, the MVARS recording is played, using the driver's own words to convict him. The third item is any recording of the enforcement contact made by the officer on a personal recording device. Many officers carry them and it serves the same purpose as the MVARS device but usually provides a higher quality audio recording.

