Wow I'm sorry to hear about how you have been treated.
I do not have a Harley, or any other bike right now. My SO does have a Harley and the dealership we deal with is a bunch of sweethearts!
To prove that, our HOG group has a member who no longer has a Harley due to medical issues. She now owns a CanAm ( that funny looking 3 wheeler). She is and active member who is well loved and a ride leader for the chapter.
I live near Dallas, TX. We go to Longhorn Harley in Grand Prairie. They treat every one including Metric riders well.....
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Now on another note there was a Harley dealership in Newburgh, NY that unless you were in a suit and tie and has cash falling out of your hands you were ignored..... I walked in there for a riding jacket and was ignored for 25 mins!!! It was empty and was told to watch out for their precious bikes! I rode in on my Yamaha! The kicker is this "dealership" also dealt with parts for other brands of bikes!
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I hope things get better for you.
Might be time to involve a lawyer..... They sound like a bunch of stuck up a**es!!!