The Manchester United defender vowed to contest the charge at a personal hearing, and it is understood that was held last Friday.
The verdict has yet to be announced.
Ferdinand reacted in an amused fashion to a "choc-ice" Tweet which referenced Ashley Cole and came from another Twitter user.
Cole was a defence witness when John Terry was acquitted in July of racially abusing Ferdinand's brother Anton Ferdinand, the QPR defender.
It is a term which is slang to mean "black on the outside, white on the inside", and was a reference from its original writer to Cole's testimony in court, in which he said he did not hear Terry make a racist remark to Anton Ferdinand during the match between Chelsea and QPR at Loftus Road in October.