Don't dally or you will be sorry! Anyone who has put off doing this fix the right way have regretted it!
First thing, get it out of the rain if possible. Vaccuum out all the water with a strong wet or dry vac. Replace the Windshield and rear windshield seals ... vaccuum it out again and place a canned dehumidifier/dessicant/absorber to pull out as much moisture as possible.

Don't forget to check under the vinyl panels in the trunk. Water can get between the vinyl and the floorpans and stink it up as well as create rust faster than a chinese bicycle.
Motor on