After they sent a Tesla in space they received lots of publicity and now if they will put an actual Dogecoin (regardless of that means) it will be a physical object they will bury on the moon now look at the effect it is having on Dogecoin price
![Shocked](https://bitcointalk.org/Smileys/default/shocked.gif)
taking into account that this symbology likes Elon as when they sent a tesla into space (previously it was done with Voyager), it is certain that many objects will be sent to the moon in the first unmanned mission of SpaceX, and among them a physical dogecoin.
therefore I think yes, that it is not just a tweet, but an announcement