I was just there last week, my second trip. My first was October of last year, and fishing in the surf was much better then than this time. There wasn't nearly the baitfish this year as last, which may well be a seasonal thing, and could be improving. I'm also too cheap to hire a guide (too poor, actually).
I finally gave up on the surf, only catching on a few whiting and catfish. I spent a morning on the pier, getting a mixed bag of smaller fish, and not seeing enough fish caught to make me want to go back.
Late in the week I hit the flats at the boat launches in the park. At the "youth camp" boat ramp, you can walk carefully out to the oyster bars and reach a lot more water.
Take your bug spray. This is my absolute favorite vacation spot.