Funny. Hope you don’t mind but I’m going to borrow your “zombie-texter”. Fits a couple of people I know to a tee.
I have used that term for a while especially after seeing repeated patterns of the zombie-texters who step off curbs without looking at oncoming traffic, walk into doors, and one even lost her balance in the last couple of steps of an escalator (Handrail? Nope.). What amused me is recently I read where a New York newspaper has used the term “zombies” to describe those who achieve such monumental efforts as described above. :-)