Insect and Spider Identification: Is this a spider egg sac? Is it safe to move spider eggs?, 1 by Slakam

Slakam wrote:
Yesterday I decided to take the window air conditioner units out of the garage. Once I got them into the house I noticed that one of them had this spider egg looking thing attached to the back.

(I\'ve added 2 pictures the second one is a more zoomed out view for context. If you look closely at the first picture you can see a spider hanging out on it too. Here\'s a closer look [HYPERLINK@imgur.com] )

Is this a spider egg sac?
If so what should I do?

Is it possible to move the eggs without harming them? I have no idea how I would do this and would be very worried about hurting the eggs.
Where would I put them to make sure they\'re still able to hatch? (I would move the spider with the sac of course.)
Would it be better just to leave them on the air conditioner? Would they still hatch?
Could the vibrations of the air conditioner harm the eggs? And maybe the temperature changes too. Or even just being on the outside of the house exposed to the elements like that.
How long will it take for the eggs to hatch? Maybe it\'s best if I just leave to air conditioner in the garage until then? How long has the sac been there already?
The sac also looks rather old to me. Is it possible the eggs have already hatched? Or that it\'s not even an egg sac at all?
Any help would be greatly appreciated
Thank you

Also I\'m in southern Ontario and the garage that I have is not attached to the house at all and does not have any power or running water or anything. It\'s just a wooden structure.

If anyone knows of other sites/forums/subreddits I could post this in too please let me know.
Thanks :)