Your recourse is to hire a great lawyer, then follow his advice. It may be you have to take this to trial. If you do and win you may have a claim against the city or county the police worked for.
Just to add to Mr. Kamen's response, keep in mind that the police report itself is not evidence so the report itself will not be entered as evidence. The alleged statements made by you (if any) and the alleged observations recorded by the officer(s) can be used at trial or at motion to suppress hearing.
You should hire an attorney to address this matter. Keep in mind that the police are allowed to be wrong about arrests so long as the mistake is based upon a good faith basis. As to any cover-up, these are facts you should discuss with your counsel. You may also have a claim, depending upon all of the facts and circumstances, under both state and federal Civil Rights violations. You should discuss this with an attorney as well in order to preserve your rights under the California Government Claims Act.
This does it create an attorney-client relationship. That costs money and this is free.