Something sees a bit "off" about this post but I'm going to proceed anyway.
First off, I'm glad you asked this question and I'm sorry this happened to you but once you've sorted this out with the police, I'd look into the reasons why you'd even have to ask if this is normal for JW's or even care. The important thing at this point is that this guy needs to be dealt with so that he doesn't try this with anyone else. You can sort out your thoughts about JW's later once you are sure that you are ok about all of this and that other women and young girls are safe.
This guy attempted to cover up his own wrongdoing and soothe his guilty conscience by
using a warped sense of Bible logic to make it seem as if you had done
wrong and you were the problem . This is what child molesters do to
their victims to keep them quiet and my hope is that his daughter or someone else hasn't
already been affected by this.
Naturally, you wouldn't want to judge every JW buy this bad experience but it seems to me you'd want to let someone know at his congregation, what happened to you. How they treat you and how seriously they deal with this guy will be very telling and could give you insights into the organization.
Under the circumstances, I think I'd insist that the police contact the congregation to let them know what this guy is up to. Make sure the police know that this guy goes from door to door claiming to be a minister and could take advantage of others.
Whether it's via the police or you or an attorney having to call or write to the congregation yourself, someone needs to make sure no one else has the same thing happen. You may not be his first victim but let's make sure your the last one.