Kathy Hilton and daughter Nicky are still reeling from their visits to Paris in jail, they tell PEOPLE.

"It's tough. It is," said Kathy, who saw her daughter on Tuesday. "It's just one hour a week: 30 minutes on Sunday and 30 minutes on Tuesday. We talk through glass."

"And this one" - gesturing to Nicky - "left in hysterics," Kathy added. "Nicky tried to keep the brave face but - I never see Nicky cry."

Nicky described her visit to the jail on Sunday as surreal. "It's sad. It's like right out of the movies," she said. "The glass partition, the orange jumpsuit. Everything."

Nicky spoke of what she saw as the unfairness in Paris's case.

"What's annoying is all these people are going on television saying that she was drinking and driving," said Nicky. "She's not in jail for DUI. That's a big misconception. She's in jail for driving on a suspended license, just like the D.A.'s wife was. ... She got a $186 fine." (On the day he sought more jail time for Paris Hilton, Los Angeles City Attorney Rocky Delgadillo acknowledged his wife got a traffic ticket two years ago while driving with a suspended license. She received the ticket - and the $186 fine - for failing to obey a turn-only sign, but wasn't ticketed for driving with the suspended license).