A young Albury mother-of-two reached over and wrenched the steering wheel as her mother tried to drive home, Albury Local Court has heard.
The mother had arranged on December 19 to collect her car for repairs.
Hours later, on the way to Thurgoona Plaza, the victim told Hayley Fitchett - who had a history of addiction - that she wasn't to "lend it to any of your junkie mates".
IN OTHER NEWS:
Police said the mother pulled over and demanded that Fitchett buy food or otherwise her grandchildren, aged 2 and 4 and in the back seat, "would go hungry".
"The defendant began to punch the roof of the vehicle and her behaviour caused the children to cry."
After they headed off, Fitchett grabbed the steering wheel to make her take her to her own home instead.
She pleaded guilty to intimidation, drive a conveyance taken without consent and passenger interfere with driver's control of vehicle.
Fitchett was put on a nine-month community corrections order.