As long as the lid was tight and no ingress, you're fine. Clean everything well and get a dehumidifier. New and Improved Eva-dry E-500... https://www.amazon.com/dp/B00BD0FN8A?ref=ppx_pop_mob_ap_share
I use this one, it's reusable.
u/twinbee you're probably better off buying something like this reusable dehumidifier device instead of disposable desiccant bags: https://www.amazon.com/Improved-Eva-dry-333-Renewable-Dehumidifier/dp/B000H0XFCS
Source: I use the larger capacity design in my bathrooms and other locations in the house. https://www.amazon.com/Improved-Eva-dry-500-Renewable-Dehumidifier/dp/B00BD0FN8A