I?m used to travel foreign countries and unfortunately even hostile areas sometimes and so I always try to have a backup plan to get me home.

As the two additional items I would choose a space blanket and one or two bandanas.

Generally:
I would try to leave the destroyed city to a more rual and less populated area.
Humanitarian measures would be focused on high populated territories at first but in a country that language you?re not able to (properly) speak or understand and that geographic specialitys you don?t know well the risks by other humans are vast. We all?ve seen pictures of violent crowds on a rampage plundering stores and even privat property from TV. It don?t need a TEOTWAWKI-scenario. Only a small blackout in the right (or wrong if you like it better) quarter ... Call me paranoid but my first and only interest at this point is to get home in sound condition without fighting! I?m not superman !

By my observations rual people (especialy in poor areas!) more kindly and more willing to help strangers in an emergency situation than urbans would be.
Part of my EDC is a area map and a sheet like the military "contingency plan of action format". I usualy know where to go to even when I only went to the grocery (paranoia index 6.9 <img src="/images/graemlins/cool.gif" alt="" />).

Let?s start with scenario b) >travailing alone<
My wife knows that I wouldn?t stay at a devastated place and that I?m able to come home on my own - even over a few hundred miles.
But for all that I would try to reach her by CELL PHONE to calm her. If the structures are down? Hm, maybe a postcard could work. <img src="/images/graemlins/laugh.gif" alt="" />
The only necessity left: Water !!!

Now scenario a) >with family<
Generally It?s the same like scenario b) but this is a little bit more complicated as my wife is a petite fragile person with only minor stength and stamina.
In the case that we?ll have to make our way out over obstructed roads it would take her only an hour or two to collapse (sorry baby <img src="/images/graemlins/crazy.gif" alt="" />) and then I?ll have to carry her (thanks god she?s only neat 45 kg). So one of the first extras I would try to gather will be a rope or something like to make an hopefully adequat carrying device (for example combined with a chair - like a packboard). Of course I carry several miles <img src="/images/graemlins/wink.gif" alt="" /> of paracord but belief me: You don?t want to carry anything 90 lbs. by it ! <img src="/images/graemlins/smirk.gif" alt="" />

Molf