That is certainly a low body consecutive build number for a 01C car. Could a 10C have been mis-stamped 01C and the car also had order process flaws that sent it back into the paint shop to be corrected? (The old computer IBM card was punched so bad, everything was wrong on the orders when the Fisher Body Plant papers were spit out of the the mainframe.)
Note the CRG Fisher Body paint flaw correction process: "If a unit required a major paint repair that couldn't be accommodated in the normal in-line cycle time, it could be diverted off the main line at the end of the repair booth into a parallel loop that ran in the opposite direction and fed the unit back into the main line ahead of the main repair booth; the re-run loop could accommodate about 20 units. " http://camaros.org/assemblyprocess.shtml#fisherpaint
By the time the body entered the Pontiac side of Lordstown the orders were correct and the interior and all other parts they added were correct and attached to the now-blue car with a still-incorrect Fisher trim tag.