Macon County does have restrictions on parking "Mobile Homes" on a residential property. Page 32, Section 4.080, paragraph E. This might be a misunderstanding on the words Mobile Home in your case.
Temporary Dwelling Unit in Cases of Special Hardship. In any residential district, a Temporary Use Permit may be issued to place a mobile home (double-wide excluded) temporarily on a lot in which the principal structure was destroyed by fire, explosion, or natural phenomena or during the period in which a permanent residence is being constructed. The purpose of such placement shall be to temporarily provide shelter for only the residents of the principal structure during the period of construction or reconstruction, and to prevent an exceptional hardship on the occupants. Placement of such temporary structure must not present a hazard to the safety, health, or welfare of the community. An applicant for a Temporary Use Permit as provided under this subsection must produce a written statement from the Macon County Health Department and/or the 33 Utilities System approving the water supply and sewage disposal systems of the temporary structure. Such a permit may be initially issued for nine (9) months. A permit may be renewed for up to six months at a time, the total time for all permits not exceeding a total of eighteen (18) months