HB wrote:.... It's wise to enclose the machine in a large plastic bag just in case there's a leak (e.g., they ignore the "THIS END UP" label

) so the cardboard box isn't compromised..
You assume that they can read...
Reading the UPS stipulations, if it was damaged in shipping then, by definition (or nearly so), the fault is the person who packed it because it wasn't properly protected. I suppose that a tire track across the box might be an exception, but even then they would probably make you prove it was one of their tires.
HB wrote:You could blow out the lines with low-pressure air. Or some suggest using a mixture of vodka and water as "anti-freeze"; I've never tried it and thus cannot vouch for its effectiveness.
Alcohol was the "original" automotive anti freeze ingredient back before the ethylene glycol mixtures came around. Interestingly enough- both are flammable. Well.. maybe not all that interesting.