What a stupid post! Perhaps he recce'd the field as he approached it (as he is taught to do), he then recce'd the precise 'landing' area during the latter stages of his approach (as he is taught to do) and then recce'd the precise 'landing' point from the hover (as he is taught to do)?
Perhaps the LR had wheels and an engine and could therefore move - and despite our banter, perhaps it was able to move quite quickly? Worse, perhaps it could move towards the aircraft, quite quickly, from its 6 o'clock - as was clearly reported?
I assume from your post, that you believe, that at no time during your helicopter flying career, could a vehicle have got near your aircraft without you being aware of it? If that's the case, you could have never spent more than around 5 seconds in the hover, or near obstacles such as trees, hedge lines or buildings? Either that, or you had one of those special helicopters that afford you 360 degree vision from the pilots seat?