Life Savers Ministries has said in a statement that they "certainly never intended to cause confusion," and that they're pulling the billboard down. The ministry's founder, James Anderegg, is quoted thusly: "Herbert Hoover would have been a far better one to quote when he said, 'Children are our most valuable resource.'"
Yeah, dude. Pretty sure ANYONE BUT HITLER would've been a better quote. Maybe you should put a reminder to yourself on a Post-It?