ABC NewsPayroll taxes, gas prices take bite out of Wal-Mart's US SalesReutersBy Brad Dorfman and Jessica Wohl. CHICAGO/BOCA RATON, Florida | Thu Feb 21, 2013 9:34am EST. CHICAGO/BOCA RATON, Florida (Reuters) - Wal-Mart Stores Inc said on Thursday that U.S. sales weakness persisted into early February, as Americans ...Wal-Mart Earnings Inline, Tax Refund Delay Shifts Sales: BAMLValueWalkWalmart's doing fine.