I’ve carefully read your comment.

The only option is a sprayable hallucinogen.

Tenacity. Start with a once a week application (Ai 4oz/A). You will probably need at least 2 but even 3-4 is likely. It will bleach the leaves of the weeds but that does not mean it's dead. It needs to have a sustained effect of 2-3 weeks or more. Likewise if you get some bleaching of your seedling bluegrass, that does not mean it will die.

You can try Tenacity as Mishmosh said. For newly-seeded grasses, the losses may be a bit...well, unacceptable. It's worth a shot as even bluegrass seedlings do survive Tenacity at relatively reasonable rates (it's really recommended for use on seed, and then not until the grass is at least four weeks old).