In the presented situation, did the driver of the combination vehicles no. 1 act accordingly?

The illustration shows the situation of creating a so-called 'life corridor' (emergency corridor) for an emergency vehicle in traffic congestion conditions. The driver of vehicle combination no. 1 is moving in a lane other than the far-left one, so they correctly pulled over as far as possible to the right edge of their lane. This behaviour complies with Art. 9 para. 2 of the Road Traffic Act, which requires drivers in lanes other than the left one to pull over to the right to allow emergency services to pass.