Was Fonzie arrested? Fonzie not Henry. In any episode?
I knew Marion was. Marion goes to jail for traffic fines. I remember the police lady wanted to be a cosmetologist. In Guess who's coming to vist
Richie and his friends were arrested for drag racing. Howard got mixed up
in and was arrested to. Plus there was that mean policeman that always had it in for Fonzie.

The mean policeman you were referring to was Officer Kirk, played by Ed Peck. He arrested Richie, Potsie and Ralph for breaking into the jukebox and violating curfew and in a memorable episode, he became the acting sheriff and tried to run Fonzie out of town. In a memorable scene, Richie and company rebelled against Kirk by wearing leather jackets.

No, but if they did lock him up, he'd use his powers to break out of jail like he broke out of the stock in that Thanksgiving episode. LOL! That could happen if the script calls for it.