Are the restrooms traditional multi-person rooms assigned Men and Women, or are they separate single-person rooms usable by anyone?

So, the San Luis Obispo police chief, Deanna Cantrell uses the men's restroom? https://calcoasttimes.com/2019/07/11/slo-police-chief-loses-her-gun-in-el-pollo-loco-bathroom/

I believe they have single room restrooms useable by any gender.

I believe they are traditional