After cutting - by his standards, at any rate - a distinctly peripheral figure in the Challenge Cup final, Jones was clearly an unhappy bunny.
The veteran half back apparently told his teammates he was "just taking his bag to the bus" before dodging the waiting media pack and disappearing into the London afternoon.
Of course, any player who loses at Wembley is entitled to be disappointed.
But there was something about Jones' actions that hinted at a troubled player.
At the time, I thought he might have been unhappy with his teammates, some of whom seemed to regard merely getting to the final as sufficient, but with the benefit of hindsight it seems more likely that he was frustrated by his own performance.
Jones has been one of the best players in the world for many years now and, having set himself such high standards, clearly doesn't feel like compromising them.
Which is why, I would assume, he has given the Dragons backword and will turn his back on a fat pile of Euros to head into retirement.
Personally, I can only applaud Jones' integrity at quitting while he is still somewhere close to the top of his game.
It would truly be a sad sight to see him play one year too many.
The opposite appears to apply to former Australia and Queensland representative Chris McKenna, who will leave Bradford at the end of the season for two seasons, the first of which at least will be in National League Two, with Doncaster.
McKenna might not be in Jones' imperious class, but it is still akin to David Beckham doing a final couple of seasons in the Unibond League.
I can only surmise that either McKenna cannot imagine life without a game on a Sunday afternoon, which is perfectly plausible, or that the Dons, apparently ignoring the financial lessons they were taught in the spring, have thrown money at him.

THE tentacles of a well known 'social networking' website, which apparently, is all the rage at the moment, seem to be spreading into the world of rugby league.
It's one thing getting emails telling you that someone you once sat next to in geography wants to list you among their online friends, but it's quite another when you start receiving unsolicited approaches from Great Britain internationals.
Which is why, as I sat sifting throught the literary ashes of Halifax's win over Doncaster late on Sunday night, I was slightly bemused to get a message telling me that Sean Long wanted to add me to his army of acquaintances.
Now, I must make it clear that I have never been introduced to the St Helens half back, with our previous meetings limited to brushing shoulders in the corridor outside dressing rooms at various venues.
So how I ended up with the aforementioned message remains something of a mystery.
It is also now safe to assume that Sean doesn't figure among my readership.
Because if he had read my views on his shambolic exit from Test rugby, then he presumably wouldn't be so generously disposed...