A SOCATA TBM7 PLT CITING LOW FUEL AND PRIORITY HANDLING INADVERTENTLY ENTERS A TEMPORARY RESTR AREA NEAR THE STADIUM 5 E OF LEX; KY.

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AT ABOUT XA00Z; I DEPARTED IGX FOR LEX ON AN IFR FLT PLAN WITH 120 GALLONS OF FUEL. ENRTE; I NOTED A LOW FUEL PRESSURE AND ACTIVATED THE AUX 'BP' WITH NO CHANGE. LATER; I NOTED A HIGHER PRESSURE; AND RECYCLED TO OFF; THEN AUTO; WITH NORMALIZATION OF THE FUEL PRESSURE. AT THIS TIME; I WAS OVER HAZARD AND TOLD TO DSND (FROM FL280) WHEN I NOTICED A 26-28 GALLON DISCREPANCY BTWN THE TOTALIZER AND THE FUEL GAUGES; WITH THE TOTALIZER AND COMPUTER PREDICTING 47 GALLONS ON ARR. REASSURED; I CONTINUED; BUT BEGAN TO CONSIDER THE POSSIBILITY THAT THE DISCREPANCY MIGHT BE EXPLAINED BY A FUEL LEAK; AS THE TOTALIZER CALCULATION IS BASED ONLY ON THAT FUEL THAT PASSES THROUGH THE INST ITSELF. WITH THE INCREASING FUEL BURN ON DSCNT; I BECAME MORE CONCERNED THAT THE DROP IN FUEL PRESSURE WAS RELATED; AND THAT THE FUEL GAUGES MAY INDEED BE CORRECT. I TOLD LEX APCH I WANTED AN EXPEDITED APCH TO RWY 26; WHICH THEY OK'ED. NEARING THE FIELD; THE CTLR ASKED IF I COULD DEV S; BECAUSE OF THE NEW TEMPORARY RESTR AREA NEAR THE STADIUM. I FIRMLY REITERATED THAT I NEEDED TO 'GET DOWN;' TO WHICH HE REPLIED 'JUST DON'T OVERFLY THE STADIUM;' WHICH WAS WELL TO THE N AND NOT IN MY FLT PATH. I LANDED UNEVENTFULLY AND FOUND NO EVIDENCE OF A FUEL LEAK; AND SUSPECTED THE INBOARD SENSORS; AS ADDING MORE FUEL DECREASED THE DIFFERENCE BTWN THE TOTALIZER AND GAUGES. I CALLED THE TWR AND THEY INFORMED ME THEY WERE SENDING A RPT TO THE FSDO REGARDING A POSSIBLE AIRSPACE ENCROACHMENT; SAYING THE TEMPORARY AIRSPACE WAS NOTAMED. I RECEIVED A STANDARD BRIEFING FROM RALEIGH FSS 3 HRS PRIOR TO DEP AND DID NOT RECEIVE ANY INFO ON A RESTR AREA NEAR LEXINGTON.