The license plate of the vehicle that Canton enters after Gibbs has chased him is clearly visible (386 EUL...which he could use to track said vehicle, but that's a different story); the vehicle into which Gibbs enters at the end of the episode has the same plate number...but is a totally different vehicle.
Gibbs hands Kate a plastic shopping bag for her bathroom needs.
In reality, these types of planes carry a small plastic bottle that has been designed for this use called a "Little John. There is an attachment that can convert the bottle into a "Lady John."
The sign for the funeral home in Columbia reads "Olarte y Hijos." While "y" does mean "and" ("Olarte and Sons"), in this case it would be "Olarte e Hijos". "Y" and the beginning sound "hi" of "hijos" are both pronounced as an English "ee"(the "h" is silent), so in cases like this "y" is changed to "e". Similar to how in English "a" becomes "an" in front of words that begin with vowels.
At 02:22- while commenting on Kate and Tony's marksmanship Gibbs doesn't notice that Tony missed the target completely with one of his bullets.