Devon and Cornwall will be inundated with refugees? Ifs, maybes, and conjecture

[Devonian]

With the number of people prepared to walk in, it wouldn't be so much of a problem and they could probably be absorbed by the like of Bristol; Taunton; Exeter etc without too much problem.

Buts lets look at another scenario, there has been an event affecting London and the South East and for some reason, everyone is trying to leave the area.

The M5 and A303 (and side roads) are completely gridlocked back as far as the M25 and nothing (vehicular) is moving in either direction.

So you were one of the earliest out and you are stuck with your family (Wife, 2 Young Children, Dog and possessions in a couple of suitcases) in your car halfway between Swindon and Bristol.

So does Joe Average and his unprepared family:

1. Stay with the car and wait to be rescued
2. Head back on foot along the motorway to Swindon with his family etc
3. Head on foot along the motorway towards Bristol with his family etc
4. Leave the road and head north towards Cirencester or Gloucester (or any area of open countryside in that direction)
5. Leave the road and head south towards Bath or Southampton (or any area of open countryside in that direction)
6. Think about where his nearest family/friends (outside of the danger area) are and then head towards them
7. Head towards the South West by foot along the Motorway (several days walk)
8. Head towards the South West by foot across country (several days walk)