you could go the gun route- bring your bike into the house, remove the wheels and store them in one locked cabinet or closet, remove the seat and store it in a locked cabinet elsewhere and then take the frame, lock it to something large and immoveable and store it in a secure third locked location and then alarm your house. It depends on how much your bike (s) are worth.

My daughter lives in austin but hwat she has is a clunker so she is not too worried although I have convinced her to bring the bike in off her balconey, take the wheels off and store them in her car trunk and secure the frame to the beframe as she can't afford to lose it and replace it at this point in her life.