I wouldn't leave them in the bonding bag overnight; it will stress them out to be confined. Not to mention no way to offer water or food without it getting messy and spilling.
If it's just for one night, I would personally just leave them at home. Offer extra pellets and dried fruits for snacks, two water sources, vegetables and fruits that keep well (grapes, baby carrots, grape tomato, leafy greens, blueberries, cranberries, slice of orange, string beans.. If you provide multiple dishes (staple in one, fruits and veg in another) they won't get as gross. I think this would be preferable to keeping them in a bonding bag.
As for Walmart, I believe they sell pop up dog kennels that are mesh, and can contain your gliders overnight. If you get the largest size available, it will be enough room for an overnight trip. If you can find one of these, it will work well as a travel cage.