I believe what you should do is get an OK attorney to get the Order for you from their DMV order it yourself. Do the same for CA. You will not get anywhere suing the DMV.- although I guess you could get a writ of mandate from the court. You would still need certified copies of Ok and CA DMV recorsds.
SUing the DMV is an exhausting process. For any government entity there are a number of loops you have to go through. Also they may have government immunity for their misfeasance. The first step is to exhaust all administrative procedures so I'd get a certified record from the DMV in CA and OK.