Does the club have a website? There would be a place to start.
Does the AMA have a club list? There would be a second place to post something
I came up with those two places in less than 5 seconds. Give me a bit longer and I could probably think of someplace else, not that I need to. How hard would it be to put a line on the website that says something along the lines of "Flying is allowed up to 2000 feet by the FAA"?
Same goes with the AMA website. I'm sure they have a list of clubs so how hard would it be to put a note behind the club name that says something similar?