would it be ok to walk around there dressed in faudel japan clothing or as a samurai? or would it look strange?

You can wear what you want it might be fun however dont be shocked if you get weird looks

You might be an added attraction in the garden.

Might look a little out of place, but hey, be your authentic self!

You can definitely wear anything. Strange is normal is SF.

I would have loved to see that! I'm sure you'd get lots of requests for photos. Awesome idea!

Of course it's ok,

Nothing looks strange in San Francisco