Nothing out near you that I am aware of, I paddled canoes for years then switched without a hitch. In my experience reentry for kayaks is much easier than canoes.
I know there are some paddling trails on rivers connected to big sam and there are marinas on the lake and Toledo Bend that rent kayaks, you may be able to find some groups to paddle or train with there. Houston, Dallas and Austin are the only places that I am sure have kayaking instructors and courses.
I did check the ACA kayak instructor list and found one in Livingston you might contact as well and see if they are doing local classes. There are lots of them along the coast that will work with you on surf tactics as well.
"Ipsa scientia potestas est"-Knowledge in itself is power - Sir Francis Bacon
"Beware the lolipop of mediocrity, one lick and you could suck forever" - unknown author