Anyone have experience with the Alzheimer's association?

Just curious to know if anyone has had experience with them? They had a mindfulness course and I was going to sign up, left my email and phone number. I took a excellent Teepa Snow class with them. The Lady called me from Brewster, MA. and said, "We need your full physical address in case we see you in distress and we are obligated to call 911." I said, "I am a caregiver and have taken meditation courses and mindfulness before. I do not feel comfortable giving you my address." She said, fine and I hung up the phone. I am tired of some of this stuff. We are doing a course over the internet, how can a stranger tell if you are in distress? This really felt like a invasion of privacy and really creepy.