WCVB 5 12/24/23: Credit card skimmers found at Sudbury Farms grocery store, Roche Bros. says. A Massachusetts-based grocery store chain says credit card skimmers were discovered at the location it operates in Sudbury. Roche Bros. Supermarkets announced Sunday that the skimmers were found on two of the self-checkout pin pads at the Sudbury Farms grocery store along Route 20.