Will Falconer, DVM Moderator
"Legally told what to do," I'd take issue with. I never, in all my years in practice, asked for rabies vaccine status before offering my services. Your vet is not going to "lose his license" for allowing your elder statesmen to get by without further rabies vaccination (which would be a dangerous act, if with all their feebleness, you somehow allowed it to happen). Any vet telling you otherwise is not leveling with you and should be called out.
I'd not beg for a waiver. I'd flat out refuse the vaccine and tell him why. If he refuses to serve your needs based on that sensible stance, he should be fired and told why. Remember: you are paying this person for his services.