I think that you are going to have to expect this reaction. I have known only 2 Akitas both were quite aggressive.
The problem with this type of dog, is that originally they seem to be owned by people that want a macho dog. As the breed progresses, there becomes more and more responsible owners and breeders and it sounds as if you are just the person to educate other people about the merits of the breed.
It has happened with the rotties and there are some beautiful ones around now.
Just try and keep CALM!!!