just food for thought: assuming you will have your EDC pistol and have to leave your vehicle, i would drink as much water and gatorade as you can before you decide to hoof it and take enough to where it wont weigh you down and when you start to walk try to draw no attention to yourself and dont present yourself as a threat right away. always expect the unexpected and always have a back up back up plan.
my plan for getting home... assuming i am in my pickup: grab the AR from the back seat, throw in a dip and kick it in 4x4 if i have to. i know EVERY road in this town. my work is 4 miles from my house... but home will not necessarily be home in SHTF. it MAY be an outpost. we have a place where there is not a lot of people and a very long line of sight i can chop someone in half with the ar10 if i need to. theres wells, generators, diesel fuel, wild game and good soil.
if im in the lancer: if i get lucky i'll be able to get where im goin but if i have to walk i will get to the river and make my way up the bank to where i need to go. ive went that route before for practice/hunting. its do-able.
I hope in that case I can park my WRX next to your Lancer and cover your six brother!