I'm very glad that the customer is now only denied access to the app. I can see one day a company that sells the "cloud-lock" will allow any thief to get in the customer's door because they left a negative review for the product (and not bragging about their vengeance in a public forum like this Garaget company did). The fact that your lock one day will betray you, or your smoke detector won't sound, your pacemaker will pump differently or your car will make a different ethical decision because the company that sells it thinks that you're an asshole is beyond crazy.
If this isn't a wake-up call to anyone who doesn't realize how dangerous this DRM (Digital Rights Myass) thing is becoming, I don't know what is. This is the can of shit that's just can't wait to hit the fan for those who trust in those cloud-based proprietary "solutions." This is exactly the kind of behavior that Stallman and the EFF warned us against and guess what, they're right again.