Someone on the previous thread did some good research. I believe it's golden. Yes, RD does occasionally publish fiction but I believe, without heading to my city library's microfiche archives, that it is true.
Yes, the story was a winner of Reader's Digest's "First Person" story award - for unique, _true_ personal experiences. See page 214 of the Nov 1955 edition of Reader's Digest for more details.
Definitely in the way it's told. But that doesn't automatically mean that the story isn't true. I'm sure RD could report on Barack Obama's election and make you doubt it really happened..