Good point, Dot. :->
What would it accomplish by telling her? I wouldn't want the surprise element to be the measure by which I value the gift.
If that had happened to me, I wouldn't tell my husband, now/after/ever. Whatever the gift, I know it gave him pleasure to find it, buy it, hide it, and it will tickle him to watch me open it. I don't want to deprive him of that. No gift (short of a household appliance) is worth making him feel that he didn't hide it well enough.