OK, I already did my ED trip, but something's been bugging me.
I never could figure out the Austrian speed limit. After coming back, I've seen a few places that said Austria had a blanket 130 kph speed limit on the autobahn. The young man that delivered mein auto (not Bernard

) said to "watch out for Austria" due to a speed limit and high fines.
When you actually drive there, however, you will see the traditional "End of speed limit" sign. I pretty much drove as fast as possible during these apparently unregulated stretches, and slowed down when I saw a camera.
If I was ticketed, I have no idea how good they'd be at finding me, anyway.
So what gives? Was I a scoff law? Why do they put up the circle and slashes if they want you to do 130 k??
Thanks to anyone with more info.