Well Crab Addison (operator of Joe's Crab Shack) decided to go one better: send out the "opt-out" form to all employees before it was required to disclose the information in discovery, but without specifically discussing the lawsuit at issue. Here's the form:
RELEASE OF CONTACT INFORMATION
From time to time, Joe’s Crab Shack (the “Company”) may be asked to provide your contact information, including your home address and telephone number, to third parties. The Company may be asked to provide such information in the context of legal proceedings, including class action lawsuits.
We understand that many employees may consider this information to be private and may not want it released. Accordingly, please indicate whether you consent to the disclosure of your contact information by marking the appropriate box.
__ No, I do not consent to the Company’s disclosure of my contact information to third parties.
__ Yes, I consent to the Company’s disclosure of my contact information to third parties.
__ I would like to be asked on a case-by-case basis whether I consent to the disclosure of my contact information to a particular third party, and my contact information should only be provided if I affirmatively consent in writing.
No sale, said the Court of Appeal, affirming the trial court:
to the extent the right to privacy is based on the release forms, there are strong reasons for not giving effect to those forms. Employees indicating that they did not want their contact information disclosed, or wanted disclosure on a case-by-case basis, were unaware at the time they signed the forms of the pending litigation to enforce their statutory wage and overtime rights through a class action lawsuit. We may presume that, had they known about the litigation, their response on the form would have been different. Additionally, the forms apprised them that their contact information could be disclosed if required by law, so they were aware of the limitation on privacy offered by the forms.
So, nice try. With a proper disclosure about any existing litigation, it's possible such a form could be given more deference by a court. But the courts seem unreceptive to efforts to preclude plaintiffs from contacting employees.
The case is Crab Addison, Inc. v. Superior Court and the opinion is here.