That pipe will not have enough water in it to freeze if the septic tank is draining correctly. Pile up some dirt under it for support and pile some on top to hide the ugly pipe.

No big deal in this part of NC, but of course it has to be reported for an inspection.

Here is some info on how to fix it if freezing is a worry:
Heating system and method for prevention of septic system freeze-up - US Patent 6869533