The stock market may have stumbled this week, but gasoline price increases continued unabated. The average price of regular gasoline in San Diego has risen to $2.84 per gallon, up nearly 14 cents in a week, according to the Utility Consumers' Action Network. One year ago, gas prices in San Diego were 33 cents per gallon lower than they are today, said Charles Langley, who oversees gasoline monitoring for UCAN, a local watchdog group. "We have never seen prices this high in February," he added. Langley said the higher costs could not be justified by the price of crude, the...