By Mark Albright, Times Staff Writer Monday, February 22, 2010 Frank Maurer just wanted some blueberries. Instead, the 65-year-old disabled Pasco County resident found himself in a baffling fight with Walmart, the largest retailer in America. Last week, Maurer's Port Richey Walmart Supercenter ran out of the fresh blueberries advertised at $2.50 a pint.