Yeah true. But I reckon it was worth asking.
Also, sometimes, all it takes is asking a carve-out to make your life easier.
For instance, he could have asked the city to add an "except residents" sign under the existing one. At least where I live, you'd be surprised how accommodating the administration can be if you simply ask nicely with a good argument.
Hell, he could have added the sign himself for cheaper and I bet none of the other residents would have complained about it 🙂