Can't disable mobile internet when no coverage

Situation: I am outside of the cellular coverage zone, so the mobile internet option in Settings is grayed out. Before the phone went out of coverage, mobile internet was enabled. I want that when my phone enters the signal coverage zone again, it would **not** connect to mobile internet. Current state: I have to glance on the phone from time to time to see when the cellular signal is restored, *then* go to Settings and disable mobile internet. Of course there is always a time interval when the phone is already in coverage zone, but I hadn't disabled the internet yet, so the phone connects to the network against my will. Suggestion: do not gray out the 'enable/disable mobile internet' option in settings when the signal is absent. ---------- EDIT [Saimaa]: in 2.0.0.10 the behaviour of the switch changed, now it is not grayed out when there is no network coverage but instead appears "switched off". When the signal is restored it "switches on" on its own. When you tap it with no signal coverage it starts to blink, like it is trying to connect to the (non-existent) network, and after a while "gives up" (stops blinking). I guess this is a step in the right direction, but I still can't disable mobile internet when there is no cellular signal. The new behaviour is also arguably less coherent because now there is *no way* to know whether mobile internet is switched off or on, but unavailable.