Just answer the previous posters disaster scenario the best way you can given your own experiences or guess at what you would do if you were in that situation.
When you're done, give a new survival situation for the next poster to answer.
You're driving along a dusty road with little or no traffic, way out in the boonies. Suddenly your car/truck dies on you. There is no phone reception for your phone.
I would check and see what the issue is with the vehicle, if it can be repaired, even for a few hours at a time, then I would use what (back-up) though simplistic repair may be warranted.
Then I would use my ONSTAR and make a call... ¬_¬
If it didn't work, then it would be an (obvious) indicator that it was electrical...however, no mind, phone/mobile reception wouldn't be needed, this will be explained later....
You've got some water in your trunk (for the radiator 2 gallons & maybe a couple cans of chili 4+ yrs past the expiration date).
The nearest bit of civilizaiotn is a gas station you passed 80 miles behind you.
I would always be (rotating my stock) within my fully equipped BoB, so I wouldn't have expired cans or whatever in it - (plus) - I would always have at least 3 MRE's broken down for emergency use.
I would wait (at least) 2/3 days (and I'm, pushing it here on this).. before starting to TAB back 80 miles to the last known point of civilization, to see exactly what traffic (if any) actually flowed, then plan the TAB during the evening hours. (since its desert) this to conserve energy, water, and make the trek easier all round.
Before that, I would collect, separate/filter, boil the water (which is not anti-freeze) as you stated, ensuring that its safe to drink and use that for the trek to the closest point.
You were traveling to the next state, you don't know if you're closer to the next gas station/town.
You also think you see buildings on the horizon.
What are you gonna do?
In this day and age w/o a GPS? - even on a mobile/smart phone? where you been? - under a fucking rock? O.o
So, as I mentioned before, I would be using the GPS on my mobile, which is always up-to-date (for this reason) which can be used w/o a mobile signal, as it will be using the battery, and would (already) be set to caching the last waypoint on a map that I access with/without a signal.
(in addition, I would also be using my GPS/radio combo as well...)
then again, in this scenario, I would know how to use as simple compass (*which would be already in my BoB) and know where my location is, by using a small paper-map that I use as back-up, marking my waypoints along my trip.
You say your 80 miles from a town, (yet) see buildings on the horizon, and your on a used road? ... between them?
Despite having little traffic, I would gather some rocks, and place them in a - "visible indicating arrow" - in the direction I started TABBING toward, which can be seen from the air - (in addition) - I would place a note on the windscreen of my car to let (anyone) know what occurred, what I am doing, and leaving a 9-line (if needed).
Its still possible that traffic flows between each town, no matter how slight, as I wouldn't be following a dirt road between A and B, if it wasn't used, considering that you didn't mention that it was completely abandoned. - ¬_¬
Besides, who travels without being prepared to begin with?
THEN after all this is said and done..
I WOULD HUNT YOU DOWN LIKE THE FUCKING ANIMAL THAT YOU ARE AND KILL YOU!