I have had some fig cuttings kept in a ziplock bag in a fridge for a month (i did collect them to root them), and they did just fine when i put them out and started to root them (4 out 5 did root). For scions, i think that key factor are heat/humidity. If hot, and not enough humidity, they dissecate; if hot and too much humidity, they rot. I haven't had much experience but i think that any time in the mail over the week may lead to failure. Overall wapping them in parafilm seems to me a solid suggestion, i just haven't yet done that myself (yet).