From David French of National Review:

If I lived in San Francisco, I would violate that law. San Francisco’s anti-gun ideology is simply not worth risking my family’s safety. I do not have confidence that — even with practice — my wife and older children would be able to unlock a safe as quickly as necessary, under extreme stress (nor am I completely confident that I could do it). In fact, it’s hard to see a clear downside to violating the law. Yes, there are criminal penalties for noncompliance, but San Francisco isn’t doing house-to-house searches for gun safes. It simply doesn’t have the resources to systematically enforce this law, and it never had any intention of systematically enforcing the law. Instead, it’s counting on the least dangerous gun owners in America (the law-abiding cohort) to voluntarily render themselves more vulnerable. I would dissent. In fact, I have dissented in other, similar jurisdictions in years past.