My local area has a great wave on a reef in slightly offshore conditions. The problem is if something goes wrong on a kite you can be up the ****. I recently had to tow someone in to the nearest downwind beach at least 3 kilometres away. It was very difficult when his kite was full of water and in very gusty and marginal offshore conditions.
A rescuer in perfect conditions, could possibly hook inflated kite to their harness leash, and sail it upwind to rocks, while the stranded kiter paddles their board in. There are issues with this technique and a safer, more fool proof system is to wrap up kite as shown below and paddle in.
The trick is to do a neat job wrapping kite up, making sure it's not full of water. Also carry a couple of short lengths of rope with you.
Deflate leading edge but leave struts inflated.
Leave lines attached but wrap lines up properly, then throw bar on top of kite.
Throw wing tip in, then start rolling kite from outer stut to centre one TIGHTLY.
Tie two struts together, then do the same thing from the other wing tip.
Lash the bundle to the top of your board.
Start paddling.
I've tried it below, and it seems easier to paddle than board alone. Especially if you just have a twin tip. It also give you a little bit of protection from the marine life.