Worth considering that an accident which would cause you to need such a device is likely to involve enough disturbance to cause a tool sitting in the cupholder to find itself thrown around the vehicle.

Yeah, it's definitely a risk but I intentionally left it in the cup holder to make sure it annoyed me enough daily when I needed to use a cup so that I remembered it existed. There's a fine line and I have a terrible memory especially in a crisis so I figured it's best bouncing around then hidden in some center console or glove box where I can't remember