Dale Jr. speeding on pit row!!?

Did anybody watch the Coca-Cola 600? After Jr. wrecked he sped down pit row THREE times when it was closed and was not penalized!! I like Jr. but he is not my favorite driver but this goes to show once again that Nascar applies rules to whom ever they want and whenever they want. It is crap like this that makes me wonder why I am a Nascar fan.