I recently traveled to Vienna from Munich and had purchased a 10 day vignette for my rental car. I am concerned that my vignette might not have been valid because I had initially put the vignette on the top left corner of the drivers side windshield and thought I should move it down a bit and so I lightly peeled it off and put the sticker back on 2 inches down. I had to drive through several toll roads to finally arrive in Vienna. I also drove the car from Vienna into Italy couple of days later on partial toll roads. If the vignette was invalid, do you think I will be fined for each toll road that I had to take or just a one time fine? I happen to stumble on a website that talked about the Austrian vignette stickers and it said that once you peel off the vignette they become invalid because of a special sensors that detects for this. If anyone has any insight, please let me know. I wonder if there is a way for me to find out if my vignette worked or if I have fines?