We left at 10:30, got to the traffic a little after 12, didn't get out of the gridlock until about 4:30. We never actually made it around the capitol, but drove by it once. It was epic.
The children were great! We had one bathroom issue driving down main street, thankfully we had the bucket and sawdust. :-)
Good thinking of bringing the bucket! :-) That IS a long time in the car for anyone!