and like -- yeah she had like a >> reporter: alison sutton was driving down this dark yolo county road when she says she passed papini and called 911. >> she pretty much just came out of nowhere. it startled me but i figured, you know, if somebody was desperate enough for help, that they were willing to be so close to traffic that they might get hit, that they really needed help. >> reporter: at the time, sutton didn't know who the woman was. >> i do feel like i got to be a witness to a small and released from an area hospital where she was reunited with her husband keith. together they made at least one phone call to the mayor of her hometown with an emotional thank you for the community's support. >> overjoyed. just that she was able to talk and give thanks. and sherri of course was tearful on the phone. even talking about it now, i'm getting tearful. i mean, there isn't anything better. >> sherri has got a long road of us would that would have experienced what it appears she has gone through in the last three weeks. >> reporter: with mystery still swirling about who's responsible, t