“where are you going”
100 mile round trip to get family members in the first couple of hours, then hunkering down where we will have assets in a rural loction.
Rural location is good. The trip may be impossible. I would expect roadblocks manned by armed people with bad intentions.
Things will deteriorate very quickly.
We're all just speculating here, but it would seem to me, that the level of chaos and disruption immediately following an EMP attack of the sort described, would make such a trip impossible.
Running that gauntlet would be a suicide mission, in my estimation.