I would get them to a humidor as soon as you can. This becomes more important depending on the humidity of the region you live in.
My grandfather kept his cigars in a humidor.
No , the antifreeze contains chemicals that would contaminate the cigars and the humidor .
Humidor
It depends on the cigars. Some of us do, others do not. If you smoke flavored cigars like Lars Tetens and Acids, don't put them in the same humidor as your Cohibas and Punches if you don't want all your cigars to taste like Lars. I wouldn't put really powerful cigars in the same humidor as mild cigars, because the mild cigars will absorb the flavor of the strong ones. But as far as putting...oh, Partagas and Punch together...no real problem.
Both, I work at a cigar and tobacco shop. We have a huge cigar case with a humidor. A humidor keeps them fresh, wrapper, or not-just throw them in:-)
It is any kind of box or room with a constant humidity where you would store cigars, cigarettes, or pipe tobacco in
Once you have mold you pretty much need to start over. Every cigar in the humidor will be affected. (infected) You could try leaving the humidor open for a week or so and giving it a light sanding and re-humidify it with out cigars for a week or two, then test it with some expendable cigars to see if it ruins them or not. Use a digital hygrometer and the crystal jars not the sponges with water. It make it easier to regulate and keep the mold away. If the humidor is a cheapy, I would toss it and start over.
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Possible. If you have kept them in a humidor, not in excess humidity they should be fine.
Stale cigars should be placed in a humidor and kept at a 70% level of humidity . Cigars only have one life. If allowed to dry out or become stale, the oils dry. From that point on they are no more than rolled tobacco leaves. They can not be brought back.
cimoke humidor very nice.
Besides cigars, a humidor can store pipe tobacco, premium cigarettes, and herbal blends that require humidity control to maintain freshness. Additionally, it can also house certain types of flavored teas or specialty spices that benefit from a humid environment. The key is to ensure that the items stored can tolerate the humidity levels typically maintained in a humidor.