Does "Weed Free Zone" kill dollar weed?

from what i have seen dollar weed is easy to kill and keep away if you just get rid of the water logged ground that it grows in. add dirt and drainage if needed but remove the always wet/damp ground and dollar weed dies

Yes - particularly when combined with atrazine, might require multiple applications, but it’s really getting too warm to use those herbicides now. I’d use MSM Turf. You need to add surfactant to the herbicide solution with a waxy, shiny leaf weed like dollarweed.