Directly after Dexter's father wonders where he is, he faces to the left suspiciously, and so the title card for the intro of "Dexter's Laboratory" can be seen in the background as he drives towards a maze. He thinks that the laboratory must be "one of those modern neighborhoods", as he mentioned.
Production code is 403.
Although these episodes were aired in 2003, there were made in 2002 according to the credits.
"Faux chapeau" is French for "fake hat".