Capt. Holt tells Boyle that he has "hired a trio of classical musicians to perform a Shostakovich cantata originally written as an apology to a dear friend." It is unclear which Shostakovich work Holt is referring to, but in any case, a Shostakovich cantata would need far more musical resources than a trio. Such works typically were written for full orchestra and chorus, sometimes two choruses, and soloists.
Capt. Holt reveals that his 'celebrity victim' is the first-chair oboist with the "New York Symphony". The New York Symphony, founded in 1878, merged with the Philharmonic Society of New York in 1928. Since that time, the orchestra has been known as the New York Philharmonic Orchestra (NYPO).
Captain Holt wears his Commendation breast bar above his World Trade Center Breast Bar. When the WTC bar is worn, it is worn above all other medals, but below the American Flag bar.
When Holt tells Charles who the celebrity is, Charles is wearing a wedding ring. Since Charles is not married it appears that Joe Lo Truglio forgot to take it off before they started filming the scene.
The marijuana plants which Jake, Terry and Scully hide behind in the warehouse are obviously plastic.