After witnessing the Creeper eating the cop's tongue, we have this gem:
Darry: (sarcastically imitating a potential phone call to the police) Hey, bum-fuck police, I'm being chased by a guy who likes to pull tongues out of severed heads with his teeth. Is there a special extension for that?
There's a great visual gag in the scene in which the Creeper eats the cop's tongue — In the background, a billboard for a delicatessen with the words "TASTES SO DARN GOOD!" can clearly be seen.
The scene from the second film where the girls are trying - and just barely succeeding - to hide the fact that they're smoking. Then the coach driver steps out from her hiding place behind the tree and joins them.
After the siblings first encounter the Creeper (who at this point they assume to be a random asshole motorist):
Trish: What the hell was his problem?!
Darry: My first guess? (leaning out of the window)INBREEDIIING!