A C210 PLT LANDED; THEN TAXIED; WITHOUT CLRNC AT APA.

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I WAS THE SOLO PLT OF A CT210 APCHING APA ON JAN/SUN/03 AROUND XA00. I CONTACTED THE APA TWR ABOUT 12 NM OUT AND THOUGHT I WAS CLRED FOR RWY 28. I RPTED PARKER ROAD (ABOUT 2 MI OUT). LNDG LIGHTS WERE ON. AFTER MAKING AN UNEVENTFUL LNDG ON RWY 28; I CLRED THE ACTIVE; CONTACTED GND CTL AND WAS CLRED TO TAXI TO THE HANGAR AREA; WHICH I DID. APPROX 2 HRS LATER; THE OWNER OF THE ACFT CALLED ME AND INFORMED ME THAT THE APA TWR HAD CALLED HIM; FEARING THAT I HAD CRASHED ON APCH AND HAD ALERTED THE LCL SHERIFF'S DEPT; WHO WERE OUT SEARCHING FOR A POSSIBLE CRASH SITE. MEANTIME; THEY HAD FOUND THE ACFT SAFE IN THE HANGAR AND ACFT OWNER THEN INFORMED THE TWR THAT I WAS SAFE. ON CAREFUL REVIEW; I MISTAKENLY THOUGHT I HEARD A CLRNC TO LAND ON RWY 28; WHICH APPARENTLY WAS NOT GIVEN; ACCORDING TO REVIEW OF THE TAPES. MOREOVER; I BELIEVE I DID NOT RPT XING PARKER ROAD. I HAVE MADE THIS APCH MANY TIMES WITHOUT DIFFICULTY. SO; I MUST HAVE BEEN DISTR; CONCENTRATING ON THE APCH. THE TWR WAS VERY BUSY WITH AIR TFC AT THAT TIME ON THE MAIN RWY 17. THE PRIMARY FAILURE WAS MINE IN NOT RPTING THE REQUESTED APCH POS AS REQUIRED BY THE TWR. FORTUNATELY; THERE WAS NO OTHER TFC FOR RWY 28; EITHER AHEAD OR BEHIND; AT THAT TIME. I LEARNED THAT EVEN THOUGH THE FINAL APCH TO LNDG IS A CRITICAL AND BUSY TIME FOR ANY PLT; ESPECIALLY SOLO; I DO NEED TO PAY PARTICULAR ATTN TO PROPER COM PROCS; WHICH VITALLY AFFECT SAFE OPS AT ANY ARPT; PARTICULARLY APA; WHICH IS VERY BUSY.