Tell him to stop, and push his hand away

With a loud smack, Cheryl slaps Ted's face, much to his surprise. "Don't you fuckin' touch me!" screams Cheryl.

Taken aback, Ted quickly apologizes for his behaviour.

"I could have you fuckin' arrested for that shit! Trying to touch an underage girl!"

Although, despite being nowhere near police, this threat manages to cow Ted into submission, and as a result he does not bother Cheryl for the rest of the drive to the local gas station.

...

At the gas station, Cheryl is quickly left off, and without so much as a word, Ted quickly drives away, never to be seen again.

Cheryl calls a tow truck, and manages to get home in time for her boyfriend's birthday party, along with the rest of her and his friends. Eager to tell her boyfriend the tale of her day, the two and their group head to a local club.