A single session at temperatures above 500F/260C is sufficient to ruin any PTFE-based nonstick pan, regardless of price or "quality". PTFE is base for the vast majority of all nonstick coatings, and goes by the brand name "Teflon". Degredation can happen at lower temperatures (anything above 400F), but at 500F or above it is both certain and swift.
You haven't said how hot the pan got, but assuming that it did get to 500F, then (a) yes, it is your fault, and (b) no PTFE-based nonstick pan is going to be more durable against excess heat than that, no matter how much you paid for it.
At a high temperature, PTFE undergoes "pyrolysis", during which some of its flourine compounds vaporize (which isn't good for your lungs, and can outright kill birds). After pyrolysis, the coating loses a lot of its nontstick properties, even though it may appear undamaged. In my personal experience, there is a subtle change to a more "matte" appearance to the nonstick surface.
Manufacturers of Non-PTFE nonstick claim that their cookware can withstand higher temperatures without loss of nonstick properties. GreenPan, for example, claims to be good to 850F. However, to date these claims have not been verified by independent authorities. Also, note that some cookware which claims to be "non-Teflon" or "PFOA free" is still based on PTFE (such as ScanPan).