I am kind of amused by people posting, "same here, same there, same here, same there, ..."
The App is so damn bloody reliable, that people forgot that opening through the App remotely is only an additional convenience feature, not the primary method to unlock your car. You can open by the App communicating through Bluetooth without any internet connection at all, and also if that fails you have a damn keycard or keyfob that will open the car the old fashioned way. Just think about this: There are many places you had driven and parked where there was no internet connection. How did your car open then?
If you don't have your keycard or keyfob on you, then you are stu**d. It is your problem. As they say, "It is impossible to make anything foolproof because fools are so ingenious"