ok i'll call this a situation too, here how i would do it, what ive under stood is that right infront of your garage gate there was someone else land and he build leaving only on single person way blocking access to garage, right ?? preety simple buddy take it court and place a case of " rah-dari" or access of passage on opponents, and there isnt damn rule or judgement that can go against you, and these are really short cases too. not a big man with legal know how but law states that no matter what you cant restrict someone else path.
if not feeling like doing it +100 to sound system wala idea by @MoizIrfan