The ticket also covers (local/regional) buses (which are more common in the rural areas of germany) so you don't even have to be near a train station. But rura

The ticket also covers (local/regional) buses (which are more common in the rural areas of germany) so you don't even have to be near a train station. But rural areas are usually better traversed by car because buses take longer (more stops, more detours, maybe not going where you want to).