Thank you so much for all of the helpful replies and updates! I especially appreciate all the extra information regarding Quick MD, new US guidelines, and ease and cost of seeing French physicians.
This will be a good experience to look back on although I admit to being in a bit of a meltdown yesterday! So far we went ahead and rebooked our flights for April 15 - slightly higher ticket price, but not awful. We were able to extend our hotel for 2 additional nights. I also called our travel insurance to let them know about our positive tests, confirm how much coverage we have for trip interruption, and ask what else we need to do (basically save our receipts and make sure we have test documentation etc.)
Around 12:30 PM today I received a call from French social services, after confirming my absence of French language skills they explained that an English speaking colleague would call back. About 30 minutes later I received the call to confirm my identity, give me my positive Covid results, and explain my lockdown timeline, and release letter (my term not theirs). They explained I’m to stay isolated until April 13 (my test day was day 1), and that I would be free to leave April 14. They also advised that they would send a letter confirming I had isolated for 7 days and was free to leave France - the agent said the letter should satisfy my airline requirements but also laughed and noted airlines could be difficult. I asked if the agent could also confirm my husbands status on the letter, she did a search and said he was not showing up in her system, but that she would include his name on the document and I confirmed he has a different last name (and spelled it out).
The agent also asked if we had seen any friends or family while unmasked or been out unmasked. I explained we had only been unmasked to eat and had worn masks on all public transport, stores, etc. Shortly after the call I received the emailed letter authorizing Mr and Mrs “my last name”, with no mention of my husbands surname, noting that our end of quarantine was April 13.
I’ve been calling the number she gave me for any follow up issues, to see about getting my husbands name updated but have yet to get through. Our current plan will be to get a doctors attestation to make sure we do not have any issues with Our Delta flight.
So far, my husband has not received any outreach, I believe I ended up getting the touscovid app when trying to save my test results (phone issue), which is probably how I was reached so quickly.
Our next adventure will be figuring out where we will stay next. Just FYI, I did mention the the French social services agent that we would need to change hotels and she had no concerns beyond noting she couldn’t help with that, but to call for anything else.
We are excited to try some food delivery apps, something I’ve avoided back home.
Also, to the poster asking about our mask wearing - the short answer is yes, we always masked in transit, indoors, and outdoors when we couldn’t keep our distance. The more complicated answer is that we did unmask to eat, and because we are in a hotel most meals were had in restaurants. We had a lot of meals at off hours, and avoided anyplace very crowded (no packed Marais bistros), but could not do as much outdoor dining as we planned because of weather and cafe smokers, and some restaurants were definitely full. We also found that most but not all restaurant goers, shoppers, and wait staff are unmasked at this point - that said, no one looks at you strangely for masking. I will note mask compliance on public transport is very good.
In hindsight - I’d try to bring as many rapid tests as possible and just test every few days to stay on top of things, I’d also recommend an apartment stay so you really can control the environment.
Thank you again for all the wonderfully responsive posters on this board and for sharing information so generously.