It is tough to determine how they could help your son or what to say at the meeting since we don't know all of the details, but I think in our district that you have to pay for the college course (we are in PA). I don't think that in PA that the school is under any obligation to provide courses beyond what they already provide. I don't know how the law reads in your state. It seems that it could get messy if the school promised to provide college classes (in any subject) if a kids runs out of HS classes. For example, my eldest took the French AP after 10th - and a good number of kids here are fluent in another language.
The next question is how far accelerated is your son in math, and what courses do they provide at the HS? In our district and the others nearby, they provide Calc AB, Calc BC, linear algebra and AP Stats - would he run out of courses if these are the course offerings in HS? There are some kids here that do run out of math courses, but we are fortunate that there are three 4 year colleges within a mile of the HS, so there are options for math (if you are willing to pay).
