CITY POLICE HAVE made an arrest in the Bud’s Barber Shoppe case. Mr. Josiah Smudge, 78, of Blandville, was arrested and charged with aggravated rock-throwing. According to neighbors, Mr. Smudge was unhappy with the unevenness of his sideburns and had vowed revenge. A number of teenage punks who had been held overnight have been released, but a police spokesman promised the community that investigators would find something to pin on them eventually.