You can ask them (we are not them) but my thought is you might need it still in place through December at least and possibly through January when forms are filed. That's if you are intent on continuing with Full Service.
If you downgrade to Enhanced for one month that puts you in charge of all form creation and submission And payments and since forms are available free or nominal charge you can be in control
If you have bundle QBO with Payroll subscription (you should see one billing amount only), I'd suggest contacting QuickBooks Online Support Team to handle this for you. Here's the link so you can contact them: https://community.intuit.com/articles/1145770.