Are you aware how expensive interlock devices are- also you can’t just decide you want it the court has to and generally they don’t put interlock in until you have multiple d w i and once it is in it is typically for life - they make you go to special garage s once a month for “recalibrating - they typically are not available locally and they are a scam by the state to beat a dead horse for money- I am actually not against the idea in theory it would probably save a lot of lives but the court turned it into a way to squeeze blood from a stone instead. Just warning you all her money is gonna go for that interlock device if you manage to make. Happen so child support is gonna be second to court fines and having your car towed to interlock locations and paying for their errors w the machinery. I know peple who. Had these things and the stories they told me were such a living hell I would have given up driving to save the haSsle and it would probably be cheaper even having to pay for rides .