As Alfie Fernandez waited six hours to vote at the West Kendall Regional Library, she already knew TV networks had called the bitterly contested presidential race for Barack Obama. But she hung in there, anyway. “I felt my vote was important,” said Fernandez, a homemaker. “We have a history of messing up votes.” Fernandez finally got to vote after midnight Wednesday, but that didn’t stop South Florida from adding to its checkered Election Day history. Thousands of voters in Miami-Dade and, to a lesser extent, Broward counties endured exhausting lines, with some like Fernandez not casting ballots until after the national race had been settled. A day later, Florida remained the only state in the union not to declare its presidential winner, and several tight local elections still hung in the balance. Miami-Dade, among four counties still counting ballots, was sorting through a last-minute surge of 54,000 absentee ballots and didn’t expect to finish the final tally until Thursday. About 10,000 had yet to be tabulated.