Same problem
I have the same issue witht his phone. From a usability standpoint, I think this is a major UI usability bug with the phone. If there is no way to fix this, then LG, may have to update its software to fix this.
I have had a number of android phones, and I validated that all of the phone that I have right now, when you press emergency call, you ALSO have to type 911, and send to dial 911.
It looks like this phone, all you have to do is press the emergency call button, and 911 is already pre-populated as the number. Unfortunately the send button is RIGHT in the exact same place where the "emergency call" button was. So this means two quick accidental presses on the screen at the same spot makes the phone dial 911! Even with the phone locked! this is NOT a good design!
If someone has a connection at LG so that maybe they can become aware of this issue please pass it along.