Father Janos states that he is from Yugoslavia. It, as a country, broke up in the late 1980s and early 1990s, Dubrovnik, the specific city he mentions, which is located in what would become the country of Croatia following the breakup. Trieste, where Angelo is from, is now a part of Italy; it is bordered by Croatia and Slovenia.
Paddy hustler is slang for a pimp.
John Wheeler, who plays the drunk in the car, is wearing a loud jacket very similar to the one he wears in The Most Crucial Game (1972). Since both shows were made at Universal and both aired in November 1972, it is possible that he filmed both scenes on the same day.
The woman who called the police to remove the drunk from her car is driving a gold 1969 Ford Fairlane 2 door coupe. The Ford lettering on the trunk and the Fairlane script above the rear bumper are covered with silver tape.
Code 2 = urgent, no lights or siren.