He found something alright, AFTER he stuck his nose where it didn't belong.
How far do you want him digging???
I'm not concerned about what he might have done, or how far he could have gone. I'm referring to what he actually did. He opened a hatch, looked in, and closed it. Not....that....hard. It doesn't need a secret handshake or a decoder ring to operate properly. Sure, maybe he shouldn't have done so. But the harm in it is a far cry from other things like climbing into the hydraulic bay and retorquing fittings or resetting differential pressure indicators but that is not what he did. The potential for harm of his actions are minimal, at best. Maybe he deserves a stern talking to but that's about it.