Signature is not required, and I would call the post office the morning you're expecting delivery (use the tracking number on their website) to see if they have it at the post office. If the shipper or you didn't request to have it held at the post office, it'll be delivered with your regular mail. I live in Houston, but the 2 shipment I got arrived well enough considering the heat. If you're ordering very small nymphs, it might be iffy but I'd imagine the others should be ok. I wanted mine held at the post office, but it ended up being delivered around 4:30 in the afternoon. I was checking my mailbox at work every half hour starting at 1, after I called and they told me they hadn't held my package.