Just saw the commercial for the foot activated lift gate – ok – riddle me this – the ad says “because we know you have your hands full”. So does the rear door open anytime you wave your foot under it? Or does the van have to be unlocked? If it has to be unlocked wouldn’t you need a hand free to do that? Or do I leave my van unlocked for anyone to enter so I can use the ‘neat’ foot activated feature?