Try to call my folks and order mom to get dad into the shipping container they have on property for storage. It might serve as a Faraday to cushion him against the EMP (he has a pacemaker now).
Then try to call my husband and tell him to do what he can for our son. They'll be out the range of any blast.
Then I do my best to get out of my office building in the seconds left because I feel I ought to be trying to do something.