What really happened was that the facility managers shut down two of the three entrance lanes that feed the bridge from the local streets of Fort Lee. From what I can tell, other traffic wasn't disrupted and may have even flowed better across the bridge that day.
If there was a political side to this, it's probably driven by a long-running battle among various state transportation agencies who are trying to figure out why Fort Lee residents get three entrance lanes to the eastbound (NYC-bound) bridge, while the rest of North America -- including converging highways such as I-80, I-95, US Route 46, State Route 4, and the Palisades Parkway -- has to deal with the inevitable daily bottlenecks at the bridge.
Christie might survive all of this if the Republican primary voters remain so uninformed about everything political. Most probably don’t know about it at all.