Facetime is not a navigation program.
Verizon Navigator will chime if you're going more than 5 or whatever miles over the speed limit.
I would argue that between facetime or my sister having a laborious conversation on a hands free while talking with both hands, facetime is largely reduandant.
The driver was distracted.
Since this is Texas, I predict he will at least regret this for the rest of his life and that's the end of it.