This could be a huge problem cause by the flooding damage, and I am talking now more about your garage or home. You better pay much more attention to the house, and the damage caused by the water, because it could create you a real problem. You can read a lot of useful information from this article about a
recent blog post on water damage restoration. For example, my brother had nearly the same story, his garage was flooded last year, but he was paying too much attention for his car and he forgot to take care about his garage. To be honest, the damage was not significant at the first sight, but he hadn't done anything for saving his garage at all. The problem was that the water destroyed the walls, and there was nothing possible to do to save the situation, so now he is rebuilding his garage and it will cost him much more money. So my advice is to try to solve the flooding issue as fast as you can, and try to remove and recover all the damages caused by the water.