Next time you see this person tell them they have to comply to the ADA title II. Specifically 28 C.F.R. 35.150(a)(3). This is a federal law and all states, cities and towns are subject. The law states no person with a disability can be denied or barred or otherwise prevented from any services provided to anyone else. There are no exceptions or grandfather clauses to protect any municipality. Don't let them bully you. It is longer and more complicated but it does cover all services provided that a goverment office provides. Under these circumstances your disability rating is your shield.