After leaving Congress, Hicks was the head of an anti-busing group, "Restore Our Alienated Rights" (ROAR), which remained active until a 1976 federal court decision mandated busing to achieve integration in public schools. In 1974, Hicks returned to the Boston City Council, and she served until 1978, including holding the council president's position in 1976. She lost reelection in 1977, but was appointed to fill a vacancy in 1979. She served until 1981, and was an unsuccessful candidate for reelection. Hicks died in Boston in 2003, and was buried at Saint Joseph Cemetery in West Roxbury.