New York police issued more than 7,400 tickets last week in a 24-hour crackdown on cellphone-using drivers. The police’s goal was to cut down on cellphone use while behind the wheel in accordance with New York law, and in light of newly released research showing that texting while driving is particularly risky. Officers gave fair warning of its planned blitz, but studies have shown that New York drivers typically ignore the law. Thursday was no different.