Brian Sproule squinted against the sun on Monday as he examined the price board at a Chevron station in downtown Los Angeles, where a regular gallon of gas was $6.05. Sproule, 37, is a mobile notary who spends much of his time in his car. He said he’s used to spending about $40 to fill his tank, but by the time he capped off his Hyundai Elantra, the meter displayed a whopping $71.59. “This is absurd,” he said, shaking his head. Gas prices in California are soaring to record levels as the holiday season approaches, combining with supply chain problems...