I once had a tree take out the entrance to my apartment. Not the actual apartment just the entrance to the building. Insurance said nothing was damaged so no check but I couldn't enter the apt for a week and had nothing but the clothes on my back!
Just a friendly bit of advice. Watch out for mold. it can come after a flood like this and it'll make you feel like you have allergies from hell.
Dehumidifiers: Essential, indeed. If any mold develops or seems to be about to, get some air filters (er, purifiers?) - they are not that expensive, and are savers against allergies, mold damage, etc.