Yes. If you find that the temperatures are going below freezing and you are handy with tools and mechanically inclined, you can remove the backflow yourself. For your convenience we have two videos that should help you with the removal. (NOTE: If you choose to remove the backflow, Andys Sprinkler is not responsible for any damages that may occur.)
Can I remove the RPZ Backflow myself?
Wilkins 375 RPZ Backflow Removal
Backflow Removal (with unions)