Radio Shack is charging New York City consumers an extra half-percent of sales tax, even though the State hasn’t approved a new tax rate. Before descending into a chaotic mess of embarrassing inaction, the New York State Senate was widely expected to hike the sales tax New York City’s local sales from 8.375% to 8.875%. That never happened, a minor detail that isn’t stopping Radio Shack from collecting more tax, as reader Jeff discovered…