I also think its unlikey he drove to TX, the Alcan is not a fun drive especially with all the snow we've gotten this year, gas is super expensive, especially when you get on the highway and you're in the remote areas, and he'd have to get through the border into Canada then back through to the US ( you do need a passport card to get through the border) . I don't see any benefit for him to drive, it would be faster, cheaper , and I don't think any less conspicuous, for him to fly. I can't imagine how her family feels, its driving me nuts not knowing!!