Cold Weather Transport of Potted Palms

[Funkthulhu]

Whether moving homes at a not ideal time of year, or just being a doofus and promising some of your palms as temporary décor for an event (like me), cold weather makes moving potted palms risky.  

Assuming you have a warm space to start/stage, and a warm car/truck/van to put them in.  What's the combo of temperature and walking distance (and wind!) that you would risk your mobile forest?  Assume no critically tropical varieties that drop dead if the get a whiff of 40F.  

Personally, I get worried if it's in the 20s (Fahrenheit) and the wind is high.  I once walked a big potted ivy 20 yards to my car (covered with a blanket!) in single digits calm weather and it completely defoliated.  But I feel my palms are mostly a bit more robust.  

What do you think?  If I wait for the daytime high above 32, should be okay, right?  (otherwise some of these are going to be living in my wife's office for the foreseeable future....)