Change your flight. If you do not you have to pay 6 X 500thb overstay fine when you depart at the airport (3,000 thb). The risk is, if you get stopped by the police for any reason during those 6 overstay days, you will be arrested and deported.
Why in the world would you think someone on Facebook could factually answer your question? Name One person in this group that can factually tell you the correct answer to what are your chances? Instead of being a bully, why don't you go to the factual source and look it up or perhaps, even better, call and ask exactly what they will accept. There isn't one person here that can give you a factually answer. Helen Rimmer already gave you the answer to check the website for the Thai embassy you will be dealing with.
In the US, the Thai Embassy in in Washington DC and they live in Miami. Quite a travel distance. They can both enter Thailand on US passports and she can update her documents once she gets here. The question was for the husband wanting to apply for a Non O from the US before arriving using her expired documents as evidence on the Non O. Might be easier for him to apply when they get here and she gets her documents updated.
My friend is trying to get a Non O from the US. His wife is Thai and she also has US Citizenship. Her ID card and Thai passport are expired. Can these expired documents still be used for a Non O Visa application? Only her US passport is current because they are still in the US.