Just before 2 a.m. on a chilly April night in Seattle, a Chevrolet Silverado pickup stopped at an electric vehicle charging station on the edge of a shopping center parking lot. Two men, one with a light strapped to his head, got out. A security camera recorded them pulling out bolt cutters. One man snipped several charging cables; the other loaded them into the truck. In under 2½ minutes, they were gone. The scene that night has become part of a troubling pattern across the country: Thieves have been targeting EV charging stations, intent on stealing the cables, which contain...