What would happen if someone called the police in California to report a guy wearing women’s short shorts?

Nothing would happen. Men in SF are encouraged to release their gayness.

I guest he person taking the report would mention tha no section of the criminal code designates items of clothing by gender.

In some parts of California, not urban areas like LA and SF, this would be acted upon by the police, but not with urgency or with the intent to actually arrest and charge the person.

Two cops would show up at your home... wearing regulation short-shorts....to take your statement. Especially in SIN Francisco.

They'd tell you that it's not a police matter and then end the call. If you did it more than once, you could receive a fine.

The world isn't obligated to indulge your moral or religious preferences, cupcake.

There are probably lots of men wearing short shorts in the bay area every evening, along with bras and wigs. If it's against your religion then you shouldn't do it.

She would be cited for misuse of the emergency response system.