The second one is actually something I've been aware of all along, but the scene just wouldn't work with a lawyer in it. The bit about the hand cuffs... I guess I'll have to change that if I don't want these police officers to come across as barbarians, huh?
I agree. Handcuffs would not be left on in the police station, so it will make your story more realistic to change that part.
The no-lawyer move was undoubtably a stupid one on Lois's part, but completely within the realm of reality. Many people falsely believe that if they are innocent they do not need a lawyer. In fact, some think that calling for a lawyer will be seen by the police as equivalent to a confession of guilt, while not calling for one will help convince the police of one's innocence. Besides, it is totally in character for Lois to believe she can handle this on her own.