Cars wind their way down Lombard Street in San Francisco, Monday, April 15, 2019. Thousands of tourists may soon have to pay as much as $10 to drive down the world-famous crooked street if a proposal to establish a toll and reservation system becomes law. In the summer months, an estimated 6,000 people a day visit the 600-foot-long street, creating lines of cars that stretch for blocks. (AP Photo/Eric Risberg)Cars wind their way down Lombard Street in San Francisco, Monday, April 15, 2019. Thousands of tourists may soon have to pay as much as $10 to drive down the world-famous crooked street if a proposal to establish a toll and reservation system becomes law. In the summer months, an estimated 6,000 people a day visit the 600-foot-long street, creating lines of cars that stretch for blocks. (AP Photo/Eric Risberg)