If it happens again and you want to make a stink, you can demand under the Privacy Act to know under what authority they collect the info, how they are going to use it, if giving it to them is voluntary, what the consequences of not giving it to them are, etc.
Please drive home the Privacy Act restrictions when this happens again to any of us. It's been discussed ofter here, so do a search for additional threads that quote from the Privact Act itself.
My personal "cut line" is that the TSA is allowed (by me) to write down anything on my boarding pass, because I've already surrendered that personal information. Anything over & above this data is off limits without my consent. "Off limits" includes anything from my DL, SSN, phone number, address, etc. This is my #1 hot button -- right behind gropings.
Those of you who have been harassed like this can submit a Privace Act request to the TSA requesting copies of any personal information they have on file. Make sure you send separate requests to the HQ and to the offending FSD at his/her airport. Remember -- this is a Privacy Act request and NOT a FOIA request. There's a big diference, and the TSA will deny your request if you unwittingly ask for the wrong thing -- and they won't tell you you asked the wrong question. Give them about 30 days, and then send a copy to your Congressman.