At the risk of being redundant, it seems to me that there are essentially two fates which could have befallen Maura. One, she succumbed to the elements - went into the woods, or what have you, and never came out. Two, she was picked up or abducted by a criminal.
I realize that it is possible Maura is alive and happily living a new life somewhere else, but I think the likelihood of this is low enough to rule it out, at least for the sake of this particular post.
Like several other posters, I would characterize much of the business in Maura's personal life leading up to the accident as more or less noise, distraction. While I appreciate Mr. Renner's efforts, lately he seems to be acting more like a gossip-hound than a true sleuth. Even if some of the elements of Maura's life in MA are directly connected to her vanishing in NH, I think it's simply wise to focus on the latter area above all else.
One of the greatest (if not the greatest) problems facing anyone trying to get a handle on what happened to Maura is - what was she thinking? What was running through her head when she left the scene of the accident? Obviously we can't know this, but we can guess based on her reported behavior
OK, so...
Maura refuses BA's offer to come inside and use his phone. Why? One - as said in previous posts, he's an intimidating-looking guy, she doesn't want to
take chances. Two - and more likely - she simply doesn't want to draw any attention by LE or anyone else. As we know, she lied to BA about calling triple-A for help. She's in panic mode at this point. Whatever her planned destination was, this second accident in as many days put a huge dent in it. The alcohol, the fear of her father's reaction, it all adds up to an instinctive urge to flee. So she does. It's cold out there, and Maura is probably soon regretting BA's offer. It's getting very dark as well, if it hasn't already. Maura is a good runner but the stress of what she's going through, plus the literal weight of what she's carrying (backpack, alcohol, etc), might make it very difficult to keep going. And so now there are two possibilities, the ones I outlined earlier.
My question is, which is more likely:
Maura, freezing cold, traumatized and fatigued, slips into the woods - to do what? To die? Certainly not to take a nap. If one wants to push this theory, it also has to be conjectured, I think, that Maura suffered some kind of concussion or head injury from the accident which impaired her thinking, and/or was feeling deeply, genuinely suicidal.
OR
Maura, still shaken from the accident and wary of LE, nevertheless realizes she must get out of this safely and determines to continue jogging down Bradley Hill Rd. to the nearest place where she can rest, use a telephone and recover. But someone abducts her, either willingly or unwillingly, and we're left with this
mystery.
Still back at square one...