Alyss, you could plant the seeds fresh without fermenting or drying them. I've done it a number of times with seed from grocery store tomatoes and they germinate just fine. The reason for fermenting them is to remove the gel coating, which is supposed to contain a substance that inhibits germination, and also to remove (or lessen) chances of your seedlings getting any seed-borne disseases. If the tomatoes looked healthy and you're eager to plant, just plant some. There's no need to dry them--they'll probably germinate faster if you don't. Good luck!