In a typical camera shot McGarrett races down the front steps of Five-O headquarters to speed off to the crime scene (this time, the prison). Unusually, the car he drives away in is a black four door Ford Galaxie (no vinyl top) and not one of his trusty black Mercurys. In the overhead shots to follow, the car changes back to the customary black Mercury with a vinyl top.
The newspaper headline stating the prisoner's demands was a pasted on slip of paper. The wording below had no bearing on this.
In this episode, Gerald S. O'Laughlin's character is named Charlie Swanson. In the closing credits, his name is Carl Swanson. The most likely explanation is that Gerald S. O'Laughlin also played a character named Carl Swanson in "Six Kilos", and whoever added the credits after all filming was done for the season put the wrong character name in the credits for this one.