From what I've heard about Bob Dylan, the man and his bohemian attitude ... this was probably no big deal for him ... he probably cooperated fully with the cops and didn't raise a fuss such as "do you know who I am?". They took him back to the hotel where tour crew vouched for him ... no problem.
I think that this reporter is only publishing this episode because in this celebrity driven media something like this happens and it is, of course - Bob Dylan - but otherwise its a non-story