A 'SMA' PLT VIOLATED A TFR INVOLVING A POWER PLANT.

Narrative

WHILE UNDER ATC RADAR CTL IN APPROVED PRACTICE AREA (WHICH IS 5 NM N TO S AND 0.5 EITHER SIDE OFF THE SHORELINE). I WAS ADVISED BY THE ZZZ1 ATC CTLR THAT I'M TOO CLOSE TO THE ZZZ3 POWER PLANT AND ADVISED TO MOVE N. I DID MOVE N WITHIN THE APPROVED PRACTICE AREA BOUNDARIES; FINISHED THE AEROBATIC MISSION AND CANCELED THE FLT FOLLOWING; CAME AND LANDED BACK AT ZZZ2. DURING THE AEROBATIC FLT I WAS NEVER BELOW 5500 FT INTO THE APPROVED BOX OF AIRSPACE (FOR WHICH THERE IS AN APPROVED FAA WAIVER). AFTER I CANCELLED THE FLT FOLLOWING THE ATC CTLR ADVISED ME THAT I'M NOT SUPPOSED TO DO MANEUVERS S OF ZZZ3 (NO NOTAM OR FAC NOTAM ENFORCED THAT). AFTER LNDG I WAS QUESTIONED BY MY SUPERIORS ABOUT THE FLT; BECAUSE THE ZZZ1 ARTCC CTLR ALERTED THE FIGHTER JETS WHILE HE WAS STILL TALKING TO ME. THE ONLY NOTAM THAT I KNOW IS DO NOT LOITER AROUND POWER PLANTS. DURING THE WHOLE FLT I WAS IN TWO-WAY RADIO COMS WITH THE ATC; WITHIN THE APPROVED BOUNDARIES OF THE FAA WAIVER AND NEVER BELOW 5500 FT. AFTER LNDG I HAD TO TALK WITH THE XXX; ZZZ4; YYY; XYZ; AND ZZZ1 ARTCC FOR SOMETHING THAT I DID NOT DO. THE AEROBATIC FLT PROFILE COULD LOOK LIKE LOITERING; BUT THIS IS EXACTLY WHAT FAA IN ITS WAIVER ALLOW TO DO WITHIN THE 5 NM N-S AND 0.5 NM EITHER SIDE FO THE SHORELINE. THE WAIVER STATES THAT THE ALT FOR ANY AEROBATIC FLT IS BETWEEN 3000-7500 FT WITH TWO WAY RADIO COMS AND XPONDER CODE ON.