Are my soaked capacitors still okay?
Electrolytic Capacitors are sealed to keep the (liquid) electrolyte in, which inherently makes them sealed to keep liquids out. They are also designed to  withstand cleaning with water or other solvents (think domestic dishwasher conditions). 

However there is a concern with the shrink-wrapped insulation trapping water and your parts have a rather high voltage rating so you want to make sure the surface of the rubber insulator is dry. Here (from CDE's application guide) is the recommended procedure following aqueous cleaning if you want to be 105% safe: 


  Aqueous Cleaning
  Water with a mild detergent may be used to clean aluminum
  electrolytic capacitors. However, immediately dry the capacitors
  in hot air at about 85 ºC for 5 or more minutes but not hotter
  than the capacitors’ maximum storage temperature. Water
  can become trapped beneath the sleeve which may not be
  dispelled by evaporation at room temperature. Water can be
  trapped under the sleeve and cause hydration and discoloration
  of the aluminum cases; although this does not affect capacitor
  operation.