The code which sorts by distance is there, but I do not have time to try to integrate it into Drive right now. I tried it before and the problem is that the favorites get retrieved without location, then get sorted, and then the distance (and full address) is added. I tried to access the location in the sort method, and also to sort by location afterwards, but it was difficult to access the right javascript objects for that, maybe somebody else has more luck.

Or maybe this isn't such a big issue after all (but it is sure annoying me).