Pineapple Express Easter Egg - Clark County

i just finished seeing pineapple express and i noticed something from a previous movie helped written by seth rogen (dale) called SuperBad. if you look at the badges that the cops from superbad have, you'll see that they're in clark county. it says clark county police department. well in pineapple express, the movie takes place in clark county again. you can also see the same badges on the cops in pineapple express. this probably went unnoticed for various reasons but i noticed it because i live in clark county but its in nevada. i searched it on the internet and theres also a clark county in illinois and washington. i dont know if this place has any significance to the writers but im sure it is...