CA/Law Firm contacted me by phone after written notice not to, do I have a case?

[the-g]

I notified a debt collector in writing via certified mail that receiving calls from them between the hours of 8am and 6pm Monday - Friday was inconvenient as per:

FDCPA 15 USC 1692g

§ 805. Communication in connection with debt collection [15 USC 1692c]

(a) COMMUNICATION WITH THE CONSUMER GENERALLY. Without the prior consent of the consumer given directly to the debt collector or the express permission of a court of competent jurisdiction, a debt collector may not communicate with a consumer in connection with the collection of any debt --

(1) at any unusual time or place or a time or place known or which should be known to be inconvenient to the consumer. In the absence of knowledge of circumstances to the contrary, a debt collector shall assume that the convenient time for communicating with a consumer is after 8 o'clock antimeridian and before 9 o'clock postmeridian, local time at the consumer's location;

They called me during these hours today (Tuesday 10/4/10, approx 3:30pm) Do I have any recourse against them?