you could probably ditch the `switch` here, and create a dictionary mapping instead:

```
NSDictionary *locationAbbreviations = @{
    @(NPBostonLocation) : @"BOS",
    @(NPMSNLocaton) : @"MSN",  // I don't know what MSN stands for
    @(NPSanFranciscoLocation) : @"SF"
};

NSString *location = locationAbbreviations[@(self.locSelector.selectedSegmentIndex)];
```

This would mean creating an `enum` for these values as well.