Husband travels all the time, wife doesnt watch the kids very well and were putting exposed aggregate step out front. Cement truck leaves, troweling gets done, retuarder gets sprayed and we cover with plastic. Before we go we put two cones with tape strung between at top and two at bottom. Next morning pull the plastic, small foot prints all over about 1/4" deep. Didnt I mark it well enough or what? what would u do?