Re: safehouses locked
1. It seems like it's just Ridel Ride available since all the safehouses are mentioned, suggesting this state. This occurs during the mid-story of the game.
2. If you've completed the story mode, it's likely a bug that you're experiencing, assuming you've done everything you should have. I found a video explaining how to acquire safehouses. It might be pointless for you, but it could help others. Here's the link.