Re:Rules Question - maybe a silly one.
You're reading it wrong.
The tower player has the right to take an action if he wants to, and he can legally take that action (he can take more than one if he has extra action chits). So if you need to do something and it's your turn at the tower, go and do it!
The tower player only needs to ask for offers if he cannot or does not want to take the action in a building. If you want to deny the other players particular actions on your turn, just don't go there. You can even end your turn early and not use up all the tower moves to this end.
ToG is a great game! Give it another spin.