i had my insurance pay for towing.
they told me to gather up my receipts for oil changes and service. i had about 90% of them. i had more than enough proof.
they ordered a new engine and it was done in less than a week.
i don't like dealers either but this was the best experience i've ever had. i braced myself for the worst. and i couldn't believe how nice they were and helpful. i'm still afraid to roll in on my 20's though. i change to my 16's for dealer visits.