You may be able to just go down the the dealership with your car registration so that they have your vin# and proof of you being the owner of the car. The anti-theft code might be in their Acura.net database. If not, you will have to pull out your radio and in addition to having your registration handy, give them the serial number in back of your radio. Once you get that code, save it.

I've had the anti-theft code for my Si memorized for many years...