I'll be flying from Washington State to both Houston and then Corpus Christi. My question is can I walk in to the check in part of the airport or do I have to call them when I arrive and let them know I want to check in my gun as I'm waiting out side? In WA I can walk up to the check in area. I would like the facts before I go down there. If this helps I have a WA CHL. Thanks for any info VR4 ETA= Yes my weapon will be safely stored in a lock box.