The final cut of the 9th episode of the Tesla Motors Club Podcast, featuring Chad Schwitters, the former president of Plug In America, is now available. You can watch it now on YouTube or listen to it on all major podcast networks.
Not without 'no rain' as you ask, but there have been a couple swipes since I've updated (now that you mention it) that I thought were overly sensitive and a little out of character. At the time, I just figured even though the windshield was too clear to warrant it, that perhaps there was a droplet on the sensor.... 2015 85D AP1
Mine activated without rain with 2017.50.3. It's been a problem since they first came out. Most recently, I just turned the car on in my garage and got a couple of wipes. Then pulled out of the garage into the sun and picked up another wipe. Yet I can go a week without an extraneous wipe.
ETA: I'm on the first step, which should be low sensitivity.
@JPUConn Yesterday, puling out of the garage and into the driveway my wipers started and kept wiping for no reason that I could see. Wife started laughing so I was forced to turn off "auto wipe" (first setting). Seems to have resolved now.