Moderator: American AAdvantage, Travel Safety/Security & Texas, FlyerTalk Evangelist
Join Date: Sep 2006
Location: AUS / GRK
Programs: AA, HHonors, Hertz
Posts: 13,485
I was chatting with a neighbor who drove in from Louisiana recently while we were walking dogs (from a safe distance).
You complete a card at the airport. There will be Texas DPS officers waiting to greet you at your gate. They can check-in on you daily; he said they've come about every 2-3 days. Different times of the day, generally from 7am to 9pm, and you don't know which day/which time.