Cal. Bus. & Prof. Code § 23090.5

No court of this state, except the Supreme Court and the courts of appeal to the extent specified in this article, shall have jurisdiction to review, affirm, reverse, correct, or annul any order, rule, or decision of the department or to suspend, stay, or delay the operation or execution thereof, or to restrain, enjoin, or interfere with the department in the performance of its duties, but a writ of mandate shall lie from the Supreme Court or the courts of appeal in any proper case.