Manually deleting clips before archiving completes

[Gizmotoy]

Hello. After a recent Tesla update, if I have my bike mounted on my bike rack while in Sentry mode I get hundreds of sentry recordings at a rate of approximately 2 per minute. This will take forever to upload, and are not valuable, so I just wanted to delete them, however I cannot figure out how.

If I just plug the device into a computer and delete them from the TESLACAM USB mount, they're still present on device in /mnt/archive/. I've had mixed success simply deleting them from /mnt/archive directly. Even a big rm -rf * will sometime return successfully but leave folders.

Is there a "best practice" for wiping out recordings before they've been uploaded/offloaded? Is this being complicated by snapshots created in /backingfiles/snapshots/?