In the last two years, Jose Luis Pena has had four vehicles seized by Los Angeles police, the price of driving without a license. The refrigerator repairman has also paid thousands of dollars in fines, towing fees and storage costs.Yet Pena continues to drive the streets in his battered pickup, always worrying about seeing flashing police lights in his rearview mirror. That would signal yet another loss to the impound lot another battery of fines.But Pena, a 31-year-old father of four from Mexico, remains locked in the driver's seat. "To work, to sustain my family," he said, "I have to ...