Don't your regs say "in any 7 day period"?
Surely that means just that. I'm limited to 60 hours flying a week, so if I don't fly Monday to Thursday, then fly 30 hours on Friday to Saturday, I'm limited to 30 hours the following Monday to Thursday. If your regs allow you to zero your time with no time off, just because Monday happened, that sounds like an accidental loophole.