To avoid this border hassle again (i.e. re-entering the EU) we decided to give Kalingrad (RUS enclave in Poland on the Baltic Sea) a miss and drive straight to Gdansk (PL). After a long day driving (516 km) with more or less continuous road works with traffic lights in Lithuania and on top of that our first punctured tire,
we managed to just cross the border into Poland and find a camping spot in Augustow. The camping we were at in 2011 (trip to the North cape) was however closed (already?) so we moved a bit back down a track towards the lake (again) and stayed at what looks like a boat club.