Looking for SmartApp to unlock door after a given amount of time

I’m using a smarthings and a Kwikset 910 to lock our cat in a bathroom while we feed him, to keep him from eating his brother’s food.

I’m looking for an App that I can have the deadbolt unlock after 10 minutes. What’s the best way to do it?

You have a cat that can operate door knobs?


Ha, I’ve taken out the door latch, so it’s not latching. The Deadbolt will be the only thing keeping it closed. The cat will push the door open.