Let all your friends know. If you belong to a local club, warn them. If you or family belong to a local Senior's club, warn them. Don't worry, once word gets rolling it will pick up steam and cover an amazing amount of the town.
When you return, take some big guy with you with a video camera..cameras scare the heck out of the less honest!! Be polite, write out your problem on paper and learn it by heart,
then give your speech and don't argue with him. Speak up plainly and make it obvious you are talking to the camera.