Not a lot of information here, but it appears they stayed with the vehicle .
State police said earlier that Barbara Briley was flown from the scene to a Richmond hospital.
Could have been the elderly woman was driving and suffered a stroke or heart attack, and that’s why everyone was still in the vehicle. Would also explain why she had to be flown out. Regardless, staying with the vehicle is usually the best choice.
I read this on several outlets and two things stood out to me the first was:
“Family members say Briley, a former New Jersey Transit driver, has made the drive many times before.”
And the second was in another article, the clerk at the last store that had them on security video claimed the grandmother came in with her GPS and said she was lost and seeking directions.
http://www.foxnews.com/us/2016/12/29/new-jersey-family-members-found-alive-in-virginia-after-disappearing-for-days.html
So many things to consider as a cause or several small causes that cascade that brought them there (onset of dementia, TIA, stoke?) but they stayed with (or were unable to leave) the vehicle. The report that the grandmother was helo’d to another hospital (without a mention of some sort of physical trauma) suggests the above scenarios.
Still a better outcome than the alternative.
Weirdness, and probably a stroke, by way of explanation.
Otherwise, one simply makes a cell phone call, and help is there.
This isn’t like she was trekking in the Yukon in a blizzard.