A wealthy Oklahoma mom convicted of maiming a young woman in a drunken car wreck was freed from prison after just 73 days and got cushy treatment during her short stay in the clink, all thanks to friends in high places — including Gov. Kevin Stitt, court papers allege. Sara Polston, 43, was initially sentenced to eight years in prison after pleading guilty in October to a horrific 2023 DUI crash, which left 20-year-old Micaela Borrego in a two-month coma and relearning how to walk and speak once she awoke. Polston was booked at the Dr. Eddiebo Warrior Correctional Center in December, but was walking free with little more than a GPS monitor in February — meaning she served just 2.5% of her sentence, according to a shocking grand jury report that found no criminal wrongdoing but alleged the boozy mom benefited from “political favoritism.” Sara Polston, 43, served just 73 days of her eight-year prison sentence.…