My MiL was in her late 70's and went on a coach trip with some veterans including the Arnhem Bridges
On the way back they stopped off and were told to return to a particular point where there was a phone box and some bushes
She did and nothing happened. An hour later she still hadn't been picked up so stopped a local Policeman, and it turned out she had chosen the wrong telephone box.
After a quick visit to the right place, he took her to the Police Station who contacted the organisers.... the coach had forgotten her, left without her and was half way back to the ferry port. They could not turn round as they would miss the ferry.
No problem, she was put in a Police Car who then blue lighted her to the ferry port where she was reunited with the coach
It was the highlight of the break for her