Well, the people (I heard about) who got in to trouble with drones were being exceptionally stupid about it, like flying one in to a football stadium. I wouldn't call a quiet country lane a congested area, if the copter fell from the sky, the chances of it doing anything is slim. The 150m rule is nonsense, if an aircraft lost signal from the controller for any reason, it would go a lot further than 150m.
There are some quads out there that are GPS equipped, and the default is to fly back the exact route it came and land where it took off from. Sensible, and very, very neat!