Celebrim
Legend
Honest question: You don't think there was any way the pcs, or at least some of them, might have escaped?
I think it is possible, although I would haven't rated it highly likely. However, even if they had escaped - "scattering into the woods" as you would have it - they would have become hunted bandits in the winter in the mountains. This would not have been the game most signed up for, and it probably just would have delayed the TPK a bit.
There was no chance that the pcs, or at least some of them, might surrender themselves when they realized that fighting their way out or escaping was a hopeless proposition?
They could have, but this isn't a society with a 20th century idea of what constitutes justice or anachronistic notions of what amounts to cruel and unusual punishment. Having realized that fighting their way out is hopeless, surrendering puts them in no less of a hopeless position. This is less likely to work than fleeing, and probably even less likely to work than fighting out the encounter and hoping the enemy rolled nothing but ones.
There was no chance that the pcs, or at least some of them, could have talked the local watch commander into starting an investigation?
Oh, they wouldn't have needed to have talked him into starting an investigation. He would have launched into one on his own. Problem is, he would have had convincing evidence of banditry, and that's a death penalty all on its own.
I see a lot of assumptions about the party's actions or attitude in your post.
Huh? I didn't make a single assumption about the PC's. I'm extrapolating how the NPC's would act based on what I know of them, and at first level there is no reasonable way the party would have survived the wrath the town watch. And its not like the NPC wasn't even a reasonable guy, because he was willing to help negotiate the PC's out of a later situation that they got themselves into that could have got them hung... but that was in a much different sitaution (they'd already proved themselves heroic by that point, they hadn't killed anyone, the offended party was alive and able and eventually willing to drop the charges, etc.). In this situation, the likely outcome would have been very grim.
You doubtless know your group, and maybe those assumptions are valid for that group, but I can see tons of ways that the situation you prevented could have led to a memorable series of adventures with the party trying to prove their innocence as (whatever other events rush on by). I think it could have been awesome. But then, that's operating based on my group's style and preferences.
I don't know what you are seeing, but I think you have this all set up wrong in your mind. This wouldn't have been a case of the party being wrongfully accused. They would have been actually guilty of banditry, and so they had no way to prove their innocence. They were armed on the Prince's highways, stole property and were found in possession of said property. No evidence in their favor existed. Case closed.