This particular scenario would help to offset against various conditions where the phone might be in a car, but the do not disturb mode does not need to be activated. (androidheadlines.com)
Open the camera with a twist of your wrist or activate the do - not - disturb mode by placing the phone face down on a surface. (flipkart.com)
I try to put my phone on airplane mode (or do not disturb mode) at around 7:00 or 7:30. (elizabeth-finch.com)