In a situation where everyone (including me) was acting reasonably, sure. But I was slightly gruntled from being pushed out for filing a safety report, and keeping it in my possession would have technically violated my new contract. Giving it to the police was clearly not stealing it and didn't require going out of my way to help them solve a problem of their own creation.

On the other side of this, I doubt the police would have done anything if they reported it stolen.

There are questions online about "what if a former employee doesn't return their laptop." They almost always end with "send a threatening letter in legalese." They stop after that because the the next step is get a $300 per hour lawyer involved for a $600 laptop.