It's funny because this is what i am currently working on!
an infinite brick maze generator!
And that is why i wanted the automatic tunnel bricks, so i could reduce brick count...
It currently works 100% as a maze generator with a 4xCube path. I have a picture somewhere
here it is:

I am planning to release it once it's done.
So, if the autotunnel bricks could get finished, i could make this happen for all of us!