No worries! We're glad to be able to discuss these things with our Sesame users and we appreciate your feedback! You're correct about the firmware and how the auto-lock works. We'll ask our devs about the feasibility of the unlock-lock-unlock trigger, but as it requires a firmware update in addition to an app one, the likelihood of us implementing this feature, especially in the specific manner you've described, is very low.
However, we understand that many users want to have more control over when auto-lock is triggered, so we will see what we can do to increase the options for the auto-lock feature. Feel free to let us know if you have other ideas or solutions that you think may work! We're happy to listen to and discuss these ideas, just keep in mind that we can't promise to implement them. Thanks again for letting us know your thoughts, we really appreciate it! - CANDY HOUSE