Over the weekend, the alarm on my 2015 Speciale went off twice, on its own. It has been in storage for the last 6 months, parked under a cover with the battery charger plugged in. For an extra layer of security, I park it with the doors locked and the alarm armed. Yesterday the alarm went off, on it's own, twice. With no apparant reason or provocation. I spoke with the tech at my dealer, and he said they have never seen or heard of this happening before. Has anyone else experienced this? If so, were you able to identify a cause?