Last time I was at a dealership it was to buy a used car. As soon as we started talking numbers I found there was an additional $800 of work that had been done

Last time I was at a dealership it was to buy a used car. As soon as we started talking numbers I found there was an additional $800 of work that had been done to the car (window tinting and some door guard thing) that I had to pay for. I started by telling him that the sticker price was disingenuous since this was was already done and they knew they had to charge for it. I ended up negotiating something half-way decent, but that was a very annoying starting point.