I did a lousy job of reading the man pmset page. ("0" is the correct answer in some situations, but not this one.)
According to Apple: sudo pmset repeat cancel: Cancel the current schedule.
Ha!!! I just looked at Rita's initial post, and it includes the "cancel" command. (It's actually a marked-up copy of Apple's instructions...and should have been noted as such.)
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire