You might try slipping a piece of aluminum foil over the RFID tag on ‘Reader’ side of the spool (side between slots 1&2 or slots 3&4). This should shunt the rf reader and render the data blank. I have not tried this, but it seems plausible.
It’s also safer than trying to open the spool and removing the tag.
Copper sheet would be more effective, but harder to acquire.