The Instant of Now by Irvin E. Cox

After the launching space-flight was normally a monotonous routine. The course was charted by automatic navigators and the vast pattern of interlocking machinery and safety devices was electronically controlled by robot relays from the pilot master-panel. The chief function of a trained space-pilot, aside from his services as a diplomat, was to handle emergency situations for which automatic responses could not be built into the machinery.

Dirrul, however, could not depend a great deal upon the robot devices. He had to avoid the well-traveled and well-charted commercial space-lanes. He had to be constantly on the alert for the telltale white of a police cruiser. A cargo carrier was the slowest ship in the universe -- Dirrul could outrun nothing, not even a playboy's sport jalopy, and inspection by the customs police would have been disastrous.