Good job on getting the seeding done! Hopefully it'll rain on it now and it'll all come up. I wouldn't worry about the weeds right now. You can spray some 24-D on them in the spring and get the jump on them that way.
See, that is what I used now. Maybe, I should have used Roundup to get a complete kill, then seeded. The directions only had formulas for large sprayers, even aerial. It was just a guess for me when I mixed. Oh well, at least that pesky swamp grass was killed.