AutoNation Honda Fremont

Went in for service and tire replacement.. went for walk while car being checked out . Received call from Edward at dealership . Tire I wanted replaced under extended warranty. Told tire had to much wear for replace under warranty. Only have 30868 miles on car . So my 1st thought is I paid 23k for a car in 2014 that only had 30k limit on tires. Edward also said they need to replace 3 tires, excluding one I got this year a few months ago that replaced another tire that was unrepairable. . but including tire I had replaced last year.. SO basically Honda wanted to charge me approx. $600 for repair ,for 3 tires at a cost of approx.$100+ a tire that's only good for 30k miles. I felt that was a rip off. The mechanic that bought my car out asked ,how much was I being charged for repairs. I told him ,he said that's a good price .I couldn't get it done anywhere cheaper. But I do know some things about cars, I knew I could. Another thing that irks me is ,I live under 2 mi from Anderson Honda in Palo Alto ,but when I was dealing with sales agent and purchased extended warranty he failed to mention , I could only use it at auto nation in Fremont ,which is approx. 20 mi from where I live.. I would recommend the Anderson dealership if someone lived in my area.