If you were in Michigan, I'd tell you this.
You can get your interlock, and then monthly go to the shop and have them download your records.
In MICHIGAN, afte a year has passed, your interlock automatically is taken off, but you will still have RESTRICTIONS.
Best bet, get the device. If it is a problem of money, I'd bring it up, but it's doubtful you'd get much sympathy.
Good Luck.