Run it through your camera Ted and be surprised. I suspect it will have a colour shift, but nothing worse than what you'd get cross-processing.
If if the colour was dud, it is valuable learning experience to understand how film does change over time in less than optimum storage e.g. refrigerator / deep freeze. In my Olympus XA I have a roll of NPS 160 that expired in November 2007, same as the roll before it. Nothing I would be concerned about other than to note the colours are not as Vaudeville as Velvia!