Since COVID they have been very stingy with their invitations to the sale in France (I didn’t have an easy time getting invited after moving here from the UK, despite a long UK purchase history). I think that chances of getting them to put you on the list at this late moment are very low. So low that I wouldn’t even bother trying.
However I do have a couple of ideas: the invitation is good for the invitee plus a guest, and you don’t have to tell Hermès ahead of time who your guest is (I would invite you to come with me but I am taking my bf and another friend wants to come if he can’t make it).
1. You could go to the Palais Congrès and try to make friends with someone going to the sale on their own. If you have lots of self-confidence and are lucky this could work. I suggest hanging around the escalator downstairs and asking a kind looking person on their way up (and hopefully security won’t run you off). I would call this approach a long shot (at best).
2. Your best chance by far is that someone reading this thread will reach out to you with a DM and invite you to accompany them. I have met many folks over the years on this site and taken them to the sale (however that was before it was invitation only). So perhaps someone reading this thread and attending the sale on their own will reach out to you and offer to help you out. It’s good karma everybody and it’s more fun to attend the sale with other people! Good luck!!!