Since I love to do experiments, I am setting up an experiment between drip irrigated new blueberry plants, and not irrigated new blueberry plants.
I have never installed drip irrigation, though I have done some reading and watched some youtube. I am getting mixed information about if I have to remove all the tubing here in michigan, every winter, or just all the timers and valves and pressure reducers.
In my experience, in a cold climate in Colorado, you do not need to take it all up. I would make sure to drain it. I would make sure that after you drain it, the ends are closed so mice dont climb in. But as long as it is drained and closed, I think you would be okay.