He is 67 so I assume he has recently retired and you now ask him to help with things he has never helped with before.
If this is so, you, not he, are being unreasonable.
Both my grandmothers insisted that salt, pepper and other condiments be removed from the table before dessert was served, and if dinner had consisted of soup followed by a meat course, that they were removed and placed on the sideboard after the meal.
My parents left the salt and pepper on the table after meals, as do my husband and I, so it is reasonable enough if your husband is confused about what you want done if he is new to the job.
I was forced to accept years ago that my MIL's way of hanging up the toilet roll was the right way (I still think it wrong) as if I hung it up as I want it, DH changes it round, saying he can't get the paper off when it is hung as I learned a toilet roll should hang.
Frankly, it is not worth making issues of these tiny details, even although they can be annoying like DH's habit of hanging his outdoor clothes on the back of a chair at the table, having just walked past the coat hooks where they should be!