A 38-year-old New Havener allegedly drove his pickup truck into three pedestrians by the Long Wharf food trucks Monday evening — and was later arrested for driving under the influence. Barely two hours later, a 19-year-old New Havener allegedly drove her car up onto the sidewalk in Fair Haven in an attempt to strike a 20-year-old woman she had been fighting with — and was later arrested for criminal attempt to commit first-degree assault. Both o…