A month ago my front lawn was treated with weed and feed (not that it did
any good, the weeds seemed to like it lol). Anyhow, one month, a bit of
rain, and 2 cuttings later, I would like to use the grass clippings as a
mulch in the garden.

Is it ok to use fresh cut grass as a mulch in a garden? And is there likely
to be any significant amounts of the herbicide from the weed and feed in the
grass?