Brand-spankin' newbie here with an idea: would it be possible to add prerequisites to some scenarios so that they only show up after you've played certain other scenarios? That would make it possible to have little stories that take place across multiple callouts as time goes on... That one couple down in Strawberry who keep scaring their neighbors with loud arguments... The over-entitled exec who thinks the law doesn't apply to him and keeps ignoring laws that inconvenience him... The teen who's falling in with the wrong crowd and you keep catching him and worrying that one of these days he's going to get caught up in something serious.
Maybe add a timer option too, so that you don't get a situation where you ticket that exec for running a red light on one side of town only to get a call 10 seconds later that he's parked in a red zone on the other side.