The expressway network of a given county can be used with the county vignette that entitles the user to do so, up to the first junction in the neighboring counties. Thereafter, the use of the expressway network is only possible with a vignette valid for the affected neighboring county, or by possessing a valid national e-vignette (e.g., weekly) that entitles the user to use the entire network.
Drivers who accidentally enter the toll road network have up to 60 minutes from the time of entry to purchase their road usage rights. If the vehicle does not have valid entitlement after 60 minutes from the time of entry, this will result in an obligation to pay a surcharge. Therefore, if you drive onto a toll section in a county where you do not have permission, it will result in a fine.
Thanks to Beat, we can notify Pro members if they are using a section of road for which the application indicates they do not have a valid highway vignette, thus allowing them to make up for it within 60 minutes of entry with just a few touches, thereby avoiding a fine.