Strangeness at the store

Whether or not the following story is paranormal or something else, I guess, is up to the individual. The story is true but could have a more rational explaination. This occurred   to my wife at the store she owns in a small town. The story as it was told to me by my wife. She had just opened for business a few minutes ago, she heard a car pull up in the gravel outside so she awaited the customers. In came an older couple who appeared to have walked out of the 1950s, The woman wore a jacket and skirt. The jacket was definitely 50s style and the skirt was below the knees. She wore a scarf on her head but her hair style was an obvious mimic of Mamie Eisenhower. The mans dress was typical male shirt and trousers (mens styles do not change a great deal.) They were pleasant and walked about the store. Finally the man said," We're looking for linoleum, you know, the kind that looks like carpet when it is lain." My wife told him we don't handle linoleum and directed him to the only store close that might. That type of linoleum, as far as I know, hasn't been manufactured since the early 1960s.  The man finally said, "I don't know this stuff", indicating the merchandise in the store. He and his wife said they would check out the referred stored and left. Looking after them as they left, my wife saw they left in a nice newlooking 1960s Pontiac.  My wife is in her 60s and is well aquainted with styles and vehicles of the 50s and 60s. So what did we have here? Makes you wonder.