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 Jake and Amy are "driving" the van, interior shots clearly show the gear selector in the park position.
Rosa's pool cue during the phone call has no tip.
When Cagney and Lacey ask why their father was in trouble with the police and if it's because he's Black, Jake and Amy freak out and call all the other squad members for advice on what to tell them except for Captain Holt. Given that Holt is not only an authority figure but a Black man, not reaching out to him on the issue makes no sense.