I occasionally drive over to Amite from Lafayette for a match. I always e-mail first just to be sure it's on. That's a long drive to just turn around and head home if the gate's locked...
bayougump@gmail.com is the president of the USPSA club in Amite, he can forward your request to the IDPA folks as they are the host club and use their props etc.
info@slidpa.org This is the contact info for the IDPA club in Thibodaux.