I called Verizon tech support, and after putting me on hold for 10 minutes whilst he called Motorola (probably in Sri Lanka), the 'tech' told me that this is a bug which Motorola is trying to figure out how to fix.
I have never heard of such a thing. . . When I was growing up, once electricity was discovered and harnessed, I learned that when you press the off button, the device went off!