I would be more disappointed that they tried to screw you out of over $600.
Had a similar experience with an extended warranty on my first Ridgeline (2006). I never used to buy these and still dont buy them on anything other than a car. Warranty paid for itself, so I purchased it again on the current 2012 RL. Have not needed it yet. If you plan to keep a vehicle past the regular warranty and as vehicles get more complex, it seems to make more sense to buy the warranty. A single post warranty service requirement can often pay for the warranty.Trust me, I've been thinking about whether they were trying to scam me or not. I didn't buy it new, I bought it CPO from another dealership. I would like to think they were just being lazy and didn't check into it properly. But, I wouldn't put it past them, they don't have the best service rating and I know they'd rather have my cash than to wait to be reimbursed.
Normally I don't do extended warranties, but when we were signing the papers, they offered a full, extended warranty for a little over $1k. If we got it, they'd drop the interest rate from 3.65 (or something like that) to 1.9. Quick math told us that we'd save money by spending money. So far I've had a new O2 sensor installed, a new starter and a free tow to the dealership, all for free.
Three weeks ago I replaced the original battery, whenever I've taken the truck in somewhere and they do a complimentary battery scan, they've told me it was getting bad. The weather is starting to dip here and it was slow to crank in the morning. I then had no problem, until...Please tell what issues you noticed in the lead up to the failure, that you say you were attributing to a bad battery.