not the freezer, but the refrigerator.. they'll live for a couple weeks.. the smallest batches i've seen online were 1000 to 1500... i think the home depot was 1500
i released maybe a couple hundred in the basement, the rest went into the dirt garden area a couple weeks after i released the first batch, i just wanted to wait to see if they would do ok (it's been pretty chilly here)
but anyways, yeah, don't release them all at once