According to eluban.pl:
During the night and early morning, German services intensified inspections, causing the traffic jam before the motorway border crossing to extend to 20 kilometres.
It adds: – From the early morning hours, drivers were leaving the A4 at the Godzieszów interchange, trying to avoid the congestion via national roads 30 and 94, which run parallel to the motorway. As a result, traffic jams began forming on all routes leading towards the border with Germany.
Chaos has also appeared on national roads. Write in the comments where the situation is worst.