It can be used in court _against you_.
You're never going to get your statements made in an interrogation into the record as exculpatory evidence.
The purpose of the interrogation is to find _other crimes_ you are also guilty of and charge you with those.
The police are not going to build a case against you, arrest you, and then immediately try to destroy their own case.
There's some real Hollywood confusion here.
There are two legal issues here. First is fighting the false arrest. Your statements will not help you here. Second is a civil rights violation case. The police negligence, if it can be established, is the basis of your case.
In either scenario your stated alibi is not meaningful.