I just did the exact same thing. Took my washed yeasties out of the fridge. They sat on the counter for 24 hours. I cooked up 2 cups of DME with 1 gallon of water, and boiled it for 10 minutes. I then dropped in four frozen water bottles, and set the pot outside (covered of course). I brought it in a couple hours later, poured 1 quart in each of two half gallon jugs, and the last half gallon of starter wort into a gallon jug. I pitched the yeast into each of the half gallon jugs, and put an air lock on them. This morning there was alot more yeast in the bottom, but no real bubbling activity. I really wasn't expecting much only after about 6 hours, but the increasedtrub layer was good to see. I hope to see good activity tonight.