What zone was this area anyway, I’m guessing something like an 8b?
It's just a little south of Houston, so zone 9a.
(I looked on two different climate zone maps. In the newer most up to date interactive climate zone map, it is still in 9a but not far away from 8b)
However, Texas did just have much colder temperatures than usual, so this tree probably experienced temperatures that were typical for a zone 8 winter.
I wouldn't be surprised if it has experienced a little bit of branch die-back and leaf defoliation.