(CNN) Gladys Knight's Chicken and Waffles, an Atlanta dining institution that features Southern favorites and is named after the famed singer, was raided on Tuesday after Georgia's Department of Revenue accused the owner -- Knight's son -- of theft and tax evasion. Shanga Hankerson, Knight's son and the owner of the three Atlanta-area restaurants, "is accused of stealing over $650,000" in sales taxes and withholding taxes owed to the state, the agency said in a news release. "After penalties and interest the total exceeds $1 million," the department said. "The department further alleges that Hankerson used these funds for personal use."