No pest strips I think are nearly useless, in all honesty.
A carpet python needs to keep a somewhat humid enclosure anyway, around 60-70% Relative humidity at any given time. Cypress will work great for this, because as I (think) i've said, it holds humidity well and doesn't mildew like aspen would.
About leaving it in your garage, I don't think that would do much good. As long as you have it compacted in the bag (and yes it is somewhat compacted), it will still be a breeding ground for those annoying little bugs. But as I said they're of no harm to you or your snakes, I just don't want to see them all over the place. They'll typically die off after a week or two in the new enclosure, i've been told.
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-Chris
The reason mainstream thought is thought of as a stream is because it's so shallow. -George Carlin
A fool doesn't learn. A smart man learns from his mistakes. A wise man learns from the mistakes of others. Which one are you?
My Website
N. American Rat/Corn snake care sheet I wrote
Information on substrates
Current snakes:
0.1 Licorice Stick Black Rat (Lola)
1.0 Black Rat (Frankie)
0.1 Texas Bairdi (Rosa)
0.1 Blue Beauty (Brunhilde)
1.0 Green Tree Python (Monty)