It is not that locals would love it here, but maybe if they need entrance to Renfe and find themselves close by to this area, they can do it for "free", since this entrance to Renfe is always open. Meaning you can just walk in.
If you are close by this direction and you want to enter renfe for free, this station is usually open
all stations usually open after 11PM anwyay so..
Mon-Su: 05:00-00:00