Several years ago I faced something similar after a sink drain hose leak made its way unseen under the floor and into the house vacuum cleaner module. The dirt in the filter molded and created quite a mess. I left bay doors wide open for as long as possible, with a portable heater/fan circulating air. The floors and such eventually dried out, but the smell didn't dissipate. I found a bottle of Febreze with as little a fragrance as possible in it, but all it did after spraying around the apparently worst offending areas was exchange one smell for another.
It took many days if not weeks to air out, but with bays fully opened as long as possible it ultimately did. This isn't the best time of year to have your bays constantly open, at least up North, but that's about all you can do, whether now or later. If you use Febreze, do so sparingly; it'd probably be worse than antifreeze.
Joel