Unfortunately it cannot be paid after a cut-away.
If someone lets their subscription lapse, we disable the device's SIM card with our carrier. This is so we don't have to continue paying our carrier for a device that our customer isn't paying for. If someone has a cut-away with our device and their subscription isn't current, the cellular network will block the device from connecting or communicating.
Once someone does renew their subscription we can re-activate the SIM card in our systems right away, but it takes 24-48 hours for our carrier to get it registered through their network again.
It sounds to me like you're saying it actually can be paid after a cutaway, but it would be 1 or 2 days until it would be activated. So, a canopy would be out in the elements for that long. If you assume 10 min of exposure to the sun on a normal jump, it really isn't that many equivalent jumps worth of exposure (100 to 200 or so at the most).
Is there something else that prevents a person from being willing to wait for the activation to occur before being able to track down the canopy?
I would venture to say that the battery would be dead by then. Remster