Welcome to the club! Interesting to hear you got the activehybrid! Haven't seen many around the city with one - the modding on the 535 will be nice. I've also run into issues with the dealership as well - seems like no one knows anything about the cars. And I didn't have a choice on the options either, so that's why I'm going mod crazy.
I have figured out a bunch of places and can share them with you if you're inerested. However, I'm still trying to figure out how to avoid warranty being voided here - Barcelona is extremely strict, as I would assume Millenium is as well, so I would check with your sales contact first.