Safe to have corals shipped during this time of the year?

[Tensa]

Hi guys.

There are some nice corals I've had my eye on, on some websites, but living in the South Okanagan, BC, we've been hit continuously with cold snaps. Last 2 weeks have gone down to minus 7.

I was contemplating placing an order to be shipped next week, when the lows are projected to be 0 degrees celsius.

Do you guys think that temperature is safe enough or should I wait until temperatures will be warmer?

Thank you.