My dad was the unofficial congregation free taxi service back in the 60s. We had the group study in our house and there were several elderly sisters without transport who came to our group, and often to our family Watchtower study evening. They all lived miles apart from each other. Dad would have to do the rounds picking them all up (nobody else ever offered) then taking them all home again. It was all taken for granted that it was their right to be taxied about to and from the meetings without having to pay, after all it was 'Jehovah' who was providing for them.
There was never any divine intervention when Dad went to refill the car's empty tank though, or heavenly help in maintaining his poor overworked car. No, it was 'Jehovah' who was providing, even though it was always Dad's wallet that suffered.