I like Christie as well, but as Roy's post indicated Democrats will use this issue as a sledgehammer. It's all about political gamesmanship. Now certainly to close lanes needlessly on a busy bridge to punish a politician who won't play ball is despicable. Because typically it's not only the target that suffers but also the citizens. Sadly this type of political payback goes on behind the scenes all the time in both parties.
Hopefully for Christie's sake he can prove he had no knowledge of this particular incident. If there's a so-called smoking gun with his fingerprints on it, his career might be damaged beyond repair.