We travelled early March from Australia to the US and entered on an ESTA visa waiver. This allows us 90 days in the US and Canada. After several days in Florida, we drove to Canada for our daughter's wedding. After our arrival in Canada the borders were closed due to Covid-19. Our ticket is a Lufthansa RTW ticket and we are scheduled to fly Orlando to Frankfurt and then on to Sweden for a month's stay after which the ticket flies us to Singapore and then home to Perth, Australia.
With all the upheavals due to Covid, we have cancelled our future onward accommodations and are resigned to flying home from North America to Perth.
The question we have is this: Due to the Covid problems, we probably will not want to fly from North America until mid-July. Will the US allow us back into the country when the borders are opened to drive back to Florida and fly from there, even though our 90-day visa waiver period will have expired by the time we leave? Or would the US border guards not take extenuating circumstances into account?