Is it safe?

Any good doctors/surgeons in the LA/Orange county areas in California?

negative.  A good provider should be able to give you all the enlargement you want or need.

But its emberrasing when you're only 2.5 inch on a good day

I would inquire from several different surgeos before embarking on that.  A functional 2.5 is better that a non functional anything.  And if they hose it up that might happen.