That's all about traffic culture and KRESZ knowledge.

Even in foggy weather, some drivers slowed down the speed of the ambulance on the M3. At speeds of 140-160 km/h, we did not use the outer lane, as there is/would be an obligation to keep to the right, so in principle everyone drives there. For us, it was better to go in the inner lane due to the condition of the patient and the smoothness of the fast progress. It's not good to dodge in such a situation," added the driver of the ambulance to the video.

Source: Origo

2022 plus:

In such and similar cases, it would not hurt for the authorities to think about how severe a fine could be imposed. For these drivers, fines of a few tens of thousands of forints will not change their driving morals, even hundreds of thousands, but a few years' driver's license withdrawal and a strict re-examination of the KRESZ might be effective. After ten or twenty harsh penalties, the other speeders might drive more restrained.