I'm not sure how to handle this situation without being fired, even though I think that would be an extreme measure.
A little background:
I work for a company that frequently requires employees to go on-site to customer locations. When the customer's location is far enough away or it's an overnight stay, we usually rent vehicles. However, that's considered unreasonable for close customer locations. In those cases, we are reimbursed mileage on our personal cars.
A big customer of ours and one that I have to go to frequently is now requiring all contractor cars to have magnets on them to indicate they're a contractor. These magnets just have the company name on them. My issue with this is that I just bought a new car not long ago and I'm doing everything possible to take great care of it. I don't like the thought of repeatedly putting on and taking off a magnet. There's a decent chance it could be scratched. I've also seen cars get sun-baked where the paint fades at uneven rates due to a section of the car being covered a lot.
I'd like to be diplomatic about this, but I can't think of a solution to suggest to my boss. Any advice?