A sideshow on southbound Capital City Freeway caused a traffic headache Sunday afternoon.
People were stopped on the roadway, out of their cars and recording the illegal show with their cell phones.
Witnesses say several cars were doing doughnuts and the traffic was backed up near Exposition Boulevard for about 20 minutes.
When California Highway Patrol officers arrived on scene, most of the cars took off.
One driver was cited.
No injuries or accidents were reported.