All's well that ends well?

Here's the story - It's January 2010 and heavy snow has closed Robin Hood Airport in Doncaster.  Many frustrated passengers.  One of them, a young man in his 20s, was so annoyed at having his travel plans disrupted that he sent a "tweet" to his friends saying "Crap! Robin Hood airport is closed. You've got a week and a bit to get your shit together, otherwise I'm blowing the airport sky high!!"  Important to note that he did not seek to conceal his identity, and did not send this tweet to the airport - indeed it was some days later when somehow or other it came to the attention of one of the managers there, and was reported to the police.  They of course investigated it and, although it seems they accepted that there was no real threat and that it was just something said in the heat of the moment, decided to charge the young man with "sending a message of a menacing character".  He was convicted in the Magistrates' Court and fined.  Since when he has been trying to get that conviction overturned.  You would think that, given it was never intended that the airport should be aware of the existence of the tweet and could therefore not be menaced by it, this should be a formality, but in fact it has taken two years and two appeals - the latest to the Court of Appeal - to achieve the obvious.  Meanwhile the young man has lost his job and is now, in his words, unemployable.  So has it all turned out alright in the end??