Thank you for the offer! Unfortunately, that's our late night at work, and I won't be getting out of there until after midnight. I'll just have to suck it up and pay CVS for some passport photos.
The answer is one year from the date of the course. Since you already have then answer, please don't call them. They're really nice people, but every minute they spend on the phone with you takes away from the time they would otherwise be devoting to processing CCW applications. Their office doesn't have phone pogues, just line people trying to do everything.