Technically you are outside of the 12 month/12,000 mile period where "adjustments" are covered. Remember the coverage is 12 months or 12,000 miles...whichever comes first.
If you still want to try it, be sure to tell the service manager that your car wanders or pulls to one side. If you give them a specific drive-ability complaint, it may help them get it covered. One thing you don't want to do is go in and tell them that your car drives fine, but you want a free alignment check because someone on the interwebz said it was a good idea. ;)