you should wait to do it till it is moist, not wet. If you have a lawntractor you can rent a pull behind roller that you fill with water. Normally rolling is bad for a lawn cause it just compacts the soil and you dont get a good root system. Just a compact one. They should have rooled the sod after they put it down. Roll it then i would do areation after it has established itself.
Darrin, DRP MOWING..
2010 Chevy Siverado 1500. 7.5 Fisher plow. 2009 Chevy Silverado 2500 HD with fisher X-Blade
J.D.920A Ztrak 54 in./ 48 in. Great Dane Super Surfer