From Ohio History Central
The worlld's first speeding ticket was issued in Dayton, Ohio in 1904.
Throughout most of the twentieth century, the city of Detroit, Michigan, was synonymous with American automobile manufacturing. In the late nineteenth and early twentieth centuries, that was not the case. Instead, Ohio innovators in Cleveland and elsewhere were at the forefront of this new form of transportation technology.
Because of Ohio's important role in the early automobile industry, the state was the site of numerous firsts in automobile history. Among these firsts was the first speeding ticket for an automobile driver. In 1904, Dayton, Ohio, police ticketed Harry Myers for going twelve miles per hour on West Third Street.