Very good observation...for comparison here is the text from TSP...rather different account of how they ended up in a wood and no mention of bad weather (because it never happened):
Two men stood on the sand, loaded down with rucksacks and carrier bags. They were as dirty as us, darkly tanned, hair pushed under hats. Backpackers possibly; homeless maybe. No, not backpackers, looking at the multi-pack boxes of food in the bags. Nor homeless, with that much food.
‘Do you live here then?’
‘No, out of town. Where are you heading?’
‘Not sure.’ Moth was on his feet, but I didn’t have the will to get up. ‘Campsites are all full, Ray’s been ill, food poisoning maybe, so we can’t walk on far today.’
The older of the two looked down at me. His face relaxed a little, easing open the wrinkles to expose the white skin beneath, a face that had spent a long time in the elements, months squinting against the sun and wind. He sat down, but didn’t let go of the bags. There was something in the way his clothes hung loose, something in the tight grip of his hand on the carrier bag.
‘Hi, I’m John. So, what are you, backpackers then?’ Something, too, in the way his grey hair curled from beneath the tattered woollen hat.
‘Well, yes.’
‘That’s a good decision, when you’ve got nowhere to go, to just keep moving. It’s the staying still that drags people down. Yeah, there’s plenty here that stay still for too long – they’ve given in and accepted that the streets are their home.’
‘How did you know? Are you an aid worker or something?’
‘No, you give yourselves away. Lying there, propped on your rucksack with your arms still through the straps. A backpacker would have taken it off, but not you; what’s in that pack’s too important to you to let it go in town.’
‘Really?’
‘Come with us, if you like. We live outside of town; you’ll be able to camp there. Just for tonight though. It’s quite a way, but we’ve got a van.’
Rashly, or instinctively, we trusted them. Moth helped me to my feet, and we followed them to a van parked in the street. We lay on blankets in the back as the van left the street lights and headed away from the sea, into country lanes and darkness. I dozed on and off for half an hour, maybe more, until the van stopped on gravel. Getting out, we found ourselves in a woodland car park, huge pines rattling overhead in a stiff wind.