This is not a serious bug, but a curiosity I thought I'd report anyway!
I had left the game running for a few hours and when I returned I noticed that the remote said 'NOT CONNECTED' or 'NO HELICOPTER FOUND' or something like that. Thought "damn, must have landed it on a railway again!!" :-) Went to check the situation and my player was actually in the helicopter, and couldn't get out (with "enter"). All my autosaves had been used, so thought I was going to have to go back to an old save, but then realised that I had landed in a dead trunk and was able to 'mine' it from inside the helicopter, then I could get out and the remote reconnected. Weird!