ALT DEVIATION; INFLT ENCOUNTER WX.

Narrative

WHILE CRUISING AT 12000' MSL; I REQUESTED AN ENRTE ALT OF 13000'. TFC WAS VERY LIGHT AND CTLR WORKLOAD WAS ALSO VERY LIGHT. I EXPLAINED TO THE CTLR THAT HIGHER WAS NECESSARY TO AVOID CLOUDS BUILDING OVER THE MOUNTAINS. A CLEAR OF CLOUDS ARWY WAS AVAILABLE; BUT MEA WAS 14000'. THAT ARWY WAS REQUESTED VFR ON TOP; BUT I WAS INFORMED BY CTLR VFR ON TOP COULD NOT BE BELOW MEA ON CHART. I EXPLAINED TO THE CTLR WE WERE FLYING A NONPRESSURIZED ACFT; NON-TURBO CHARGED; AND HAD NO DE-ICING EQUIP. THIS WOULD REQUIRE A CLB TO 13000'. HE SAID ROGER; KEEP ME ADVISED! ABOUT 5 MINS LATER I CALLED ON SAME FREQ REQUESTING 13000'. THERE WAS NO ANSWER. THE PLT HAD CREEPED UP TO 12800' IN THE NEXT 5 MINS; TO TOP THE LAYER OF CLOUDS COVERING THE MOUNTAINS. PREVIOUSLY I HAD TOLD THE CTLR THAT OUTSIDE AIR TEMP AT 12000' WAS -7 DEGS C. AFTER A FEW MINS AT 12800' THE CTLR FINALLY CAME BACK AND ASKED US WHAT WE WERE DOING AT 12800'. WE TOLD HIM WE HAD TO DEVIATE FROM THE ASSIGNED ALT TO AVOID ICING CONDITIONS. HE DIDN'T SEEM TO CARE ONE BIT. HE DIDN'T CARE IF WE LOADED UP WITH ICE AND CRASHED AS LONG AS WE DIDN'T HIT THE CENTER'S FAC. I EXPLAINED TO HIM AGAIN THAT THERE WAS NO WAY TO MAINTAIN 12000' W/O RISKING OUR LIVES. 91.3 ALLOWS PIC TO DEVIATE WHENEVER NECESSARY IF HE FEELS THE FLT MIGHT BE IN JEOPARDY OR UNSAFE. THE CTLR STILL CAME BACK WITH THIS LINE ABOUT BUSTING OUR ALT. AT THAT POINT; I STUPIDLY MADE A REMARK TO THE CTLR: 'I; THE PIC OF THIS ACFT; HAVE THE AUTHORITY; AS PER THE FAR'S TO DEVIATE IF I FEEL IT IS NECESSARY. THE PIC HAS THE FINAL SAY; NOT THE CTLR; SO WHY DON'T YOU CONTINUE TO FLY YOUR RADAR SEAT; AND LET US DECIDE HOW TO FLY THE AIRPLANE!' AT THAT POINT WE WERE GIVEN THE FAMOUS PHONE NUMBER TO CALL THE CENTER WHEN WE GOT ON THE GND; WHICH WE DID UPON LNDG IN UT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RPTR CHKED RECORDS TO DETERMINE CORRECT DATE; MONTH WAS SEPT; NOT AUG. PHONE CALL MADE TO ARTCC AND RPTR TOLD TO CALL BACK MON. AT THAT TIME TOLD THAT REVIEW OF TAPES INDICATED CTLR SHOULD HAVE HAD MORE AWARENESS OF PLT'S SITUATION. SUPVR SEEMED TO BE APOLOGIZING FOR CTLR BEHAVIOR. IT WAS ALSO SUGGESTED THAT RPTR RESPONSE DID NOT HELP SITUATION. NO FURTHER ACTION.