Glad you are enjoying. H scenes are located mostly at the pub. There is also one on the Simon mission and a few rare random scenes. Once haven is done, this sort of stuff will be the focus of the next updates.
Haven is the focus of the next update and contains a large new location as well as a lot of h scenes.
Trainstation will be the focus of a future update involving missions relating to the security forces. You can't access it right now.
Wait function is a bug that happens when you reach the haven mission. Waiting is blocked while in haven but I triggered the block too early. The same issue with the bus stop. Both will be fixed in the next build and isn't something you caused.
Haven will be out in 2 or so weeks so keep an eye out for it :)