Shipping birds on Thursday?

I know the P.O. accepts birds for shipping on Thursdays, I'm just wondering if anyone has done it? I wasn't able to send the 2 button boys to CA Monday, we'd gotten some snow which made it near impossible for us to get out of our road. Tuesday and today were so stinking cold that I didn't want to risk it (plus I was at the doctor's Tuesday with my son when I would have had to be packing buttons). I had planned on just sending them next Monday, but it's supposed to be a high of 18*??? Tuesday is supposed to be 26*??

Tomorrow (Thursday) is supposed to be 40*, Friday 48*, and Saturday 49*, then the end of next week is again supposed to warm up.

I have small heat packs I could put in the box with them, but I think shipping anything when it's that cold is just dumb. No amount of heat packs would keep them warm enough.

I've not shipped many birds, but the ones I have shipped have taken no more than 2 days (example: ship Wednesday afternoon, arrival Friday morning). Birds I've had shipped to me have all taken 2 days save for one box that came from MD last winter.

So I'm thinking they should be okay to send? I just need some reassurance I guess.

Next week's weather is in the upper 30's and low 40's after Wednesday, but that would still be late in the week.

 

These are buttons, so they have to be in a heated area.

But they do okay in lower temps for a little while, and I can always section the box and cover the holes more to make them 'snuggle'.

My P.O. said they accept lives Mon-Thurs, otherwise I wouldn't bother asking