Just because you can not put an antenna up where you live does not mean you can't get on HF. You can still get on HF in your mobile. Remember CB antennas are for 11 meters and will work on 10 meters also. Or you can string up an antenna when your out camping. Or go somewhere up a hill, or in the bush for the day and put up an antenna. Or you could simply convince her to allow you to put up an antenna. There are many designs that will not be very noticeable anyways. Write out a list of all the reasons you need the antenna. Or there are even some antenna designs you could put up where you live just for a few hours or the weekend or something. I really think you will have a lot more fun tuning around there.