I’ve lived in this area for 30 years and there is definitely a speed trap along the 1block north (the overpass) to two blocks south (to George Washington Bridge Plaza) of the high school. The speed limit is 25 in that are and I have seen them park under the overpass (they get you before you see them) or stand and wave you over car after car just as you exit from there going southbound. Now somethimes they get you a block more south because people know about it and speed up coming out of there if they don’t see anyone. Sometime’s they sit in the parking lot of the JCC. Or they’re parked in front of the school or by the Plaza.