If it's not too late to answer this -- what makes you think that your bulbs are dormant? Sept 22 - I will bet they are rooted. Daffodils usually get dug 6 weeks after they bloom. That should make it around Father's Day in your area, 3rd week in June, give or take a week or two.
IMHO you missed your window, but if you really, really want to get the bulbs up and out, and if they really are as overgrown as you say, I want to tell you what to expect and how you can be prepared. The bulbs will probably be what we call "apartmentized"...they have grown & multiplied as wide as they can go in your soil and will have started up, like a 5 or 6 story apartment building. You will have your original bulbs with bulbs on top of those, and bulbs on top of those....all the way to the top of the soil.
So whatcha gonna do with all those bulbs?
If you can answer that question, and can get them dug and replanted in a single day, then you can probably move them even though they started rooting. BUT be aware there will be hundreds of bulbs and some will be small. If the bed really is overgrown, they bulbs will be narrow & tear-shaped and extremely hard to get apart since they grow together like a jigsaw puzzle.
If they didn't bloom last year, or bloom was poor, they won't all of a sudden bloom next year because they haven't had enough time.
If you truly are looking for advice, I would throw some 6-24-24 or 5-20-20 on top of the soil now, again in Feb, and again in April -- a heavy dose. (It's sometimes called onion fertilizer.) THEN 6 weeks after bloom in 2007, dig them up and find homes for them. You'll have 3 or 4 months to get it done before they have to be put to bed for the winter.
P.S. You can use Round Up successfully on daffodils from late July-Dec with no harm. Current thought is to add some nitrogen to the Round up to stimulate growth, especially this time of year if the grasses are going dormant. This won't be an issue for a Vah-ginian for another couple weeks, I wouldn't think.