They told me to come back a week after dropping off reg and pick up plates or they will destroy them if you don't come within a few days
Plates are normally mailed out to you. If you are registering at the dmv, you would be walking away same day with a temp registration until you receive your permanent one in the mail. Check the website first, because you might be able to save yourself a trip, too.
Thanks! Your answer is awaiting moderation.