First, do they have a right to use a camera mounted in a height above the normal eye level? Why should people be required to adjust the height of their fences to protect themselves from Google's view? Just because there are no laws against this yet, doens't mean Google has a right.
Second, even if they have the right to make the photos, do they also have the right to automatically make them public? There's no human judgement involved, so who's responsible when Google camera catches you naked while sun-bathing in your own garden? Who can be sued for taking these images down and who's paying for the damage that is created while the photos were online?
Third, do the have the right to connect the photos with street addresss so the views are searchable? This decreases search costs and your home will be public not just to bypassers, but to anyone. Who said, they are allowded to do that?
And this is the point: They asked noone but just though they could act as if they are free do however they please. This may work in the U.S. but this doens't work here. Or, at least, that's not how it should work.