Wah, wah. Mis-classified drivers... your ship has sailed. Move on.
The issue here is you are falsifying a DVIR and affirming that your vehicle is safe to operate on the roads when you know for a fact that it isn't. You are putting yourself, the general public, and the brand reputation at risk when you knowingly operate faulty equipment to deliver packages. Shame on your CSP for not knowing the condition of their fleet and/or not being on top of routine maintenance but shame on you also for lying on a DOT form and putting people in harm's way because you lack integrity.