Too late according to who? Con artists keep no schedules, they operate around the clock year-round, and care nothing about any laws or lists. One thing they do care about is having their calls answered in any way. No kind of answer, they've got nothing.
Block it. I made the mistake of calling back. "Thank you for calling. The survey has closed. If you wish to be removed from our calling list press..." {click} This is why I should never call these numbers back!
Caller ID: TOWNSEND GROUP
No message left: now blocked. Note to legitimate callers: use real name in Caller ID and leave a voice mail. The old tactic of calling repeatedly until a live person answers has gone the way of rotary dials. I'm not even waiting for a second call anymore before blocking the number.