No, I don't know enough about the law, just using common sense and musing what would have happened if it was someone else, everyone is free to draw their own conclusion from that.
And no, I'm not judging him, the Law had already judge him guilty, I'm just stating my point of view that this do not seem fair base on the facts of the case, to charge Wu only under traffic law when he had lied or agreed to let someone lie for his benefit and obstruction of justice had occured. And this is NOT the first time it happened.
Yes, Sh*t happens but if everyone just let sh*t happen, soon there will be Sh*t all over the place.