I think that's fairly common in food distribution warehouses, but I wonder what kind of point-of-care facility would have that capacity. It has to stay at that temperature all the way until injection? 24h would make all the difference...
I don’t think it has to be that cold until injection, I recall reading relatively warmer temperatures (but still much colder than commercial freezers) for a few days prior to injection.
In any case this will be a hinderance towards targeting certain demographics with limited vaccine supplies, unless you can get them to all come to the same location at around the same time.