You did just fine. 2 1/2 hours in a dealership can be grueling.Also, congrats on getting out of there without dealer rustproofing or addons. Spending that money on winter tires instead was very smart. Go to Krown for better rust protection.Extended warranty is simply insurance. Most here would advise against it, and I agree. Chances are, it won't come in handy, or won't cover the specific problem you may have down the road, despite what they tell you now.