Seainin Genevieve Cutter from Greysteel redirected payments into her own account and forged doctor's signature.
Residents and motorists living in the area express anger that "horrendous" traffic delays are set to continue.
The Eglinton woman and her granddaughter, aged three, were on a pedestrian crossing when the collision happened.
The five-year-old's father says his daughter's toothache is putting her off food and taking her out of school.
Maisie's father says his daughter's toothache is putting her off food and taking her out of school.
Gardens in the village of Greysteel in County Londonderry have been flooding for the past year.
Brenda Devine, from Greysteel, has not been able to go home for months due to a shortage of carers.
