A LEAR 25 MAY HAVE VIOLATED THE ADIZ NEAR MIA.

Narrative

DEPARTED OPA LOCKA ARPT MAR/SAT/94; IN CAMERA EQUIPPED LEAR 25. WE INFORMED ATC OF OUR INTENT TO PROCEED SE TO E 60-90 MI IN ORDER TO PHOTOGRAPH CLOUDS FOR A MOTION PICTURE. DEPS ISSUED US A XPONDER CODE; HANDED US OFF TO CTR AND DID NOT CONVERSE WITH US UNTIL WE CONTACTED THEM INBOUND. CTR TOLD US THEY WERE TOO BUSY TO WORK US; TO MAINTAIN VFR AND CONTACT ATC INBOUND. THEY DID NOT TELL US TO CHANGE XPONDER CODES; SO WE REMAINED ON OUR ASSIGNED CODE AND MONITORED THEM ON VHF. WHEN FINISHED WITH OUR MISSION; WE PROCEEDED INBOUND. THE CTR FREQ WAS SO BUSY WE COULD NOT GET A WORD IN EDGEWISE. I CONSIDERED IT POOR JUDGEMENT TO 'JUST WAIT' FOR TFC TO SUBSIDE; I CONTINUED BACK TO OPA LOCKA VIA A RTE AND ALT AS TO REMAIN CLR OF THE MIAMI DEP RTES AND CLASS B AIRSPACE UNTIL DULY AUTHORIZED BY ATC. PRIOR TO PROCEEDING WITHIN THE LATERAL LIMITS OF THE CLASS B AIRSPACE; I SWITCHED FROM CTR FREQ TO APCH; THEN PROCEEDED WITH THE ARR. I WAS TOLD TO 'CALL MIAMI CTR' AFTER LNDG. THEY SAID THERE WAS A PROB WITH US AND THE ADIZ. WE WERE ON A DISCRETE XPONDER CODE WITHIN THE COVERAGE OF MIAMI RADAR AT ALL TIMES. WE DID AS WE WERE TOLD BY ATC. IF THERE WAS A PROB WITH THAT; THEY SHOULD HAVE INFORMED US NOT TO FOLLOW THEIR INSTRUCTIONS.