If he had a SC license, which I was not aware of, then he needs to file for a restricted license in SC, since they control his license and the suspension. They do grant a restricted license on the mandatory suspension for MIP in SC, but he has to apply through the SC DMV. See: South Carolina Code Section 56-1-746.
"(A) The Department of Motor Vehicles shall suspend the driver's license of any person convicted of the offenses contained in Sections 56-1-510(2), 56-1-510(5), 56-1-515, 61-4-60, 61-4-80, 61-4-90, 61-6-4070, 20-7-8920, and 20-7-8925 as follows:
(1) for a conviction for a first offense, for a period of ninety days;
(2) for a conviction for a second or subsequent offense, for a period of six months.
(B) For the purposes of determining prior offenses, a conviction of any of the offenses enumerated in subsection (A) within ten years of the date of the violation is considered a prior offense.
(C) Notwithstanding the provisions of Section 56-1-460, any person convicted under this section shall be punished pursuant to Section 56-1-440 and is not required to furnish proof of financial responsibility as provided for in Section 56-9-500. The conviction shall not result in any insurance penalty under the Merit Rating Plan promulgated by the Department of Insurance.
(1) If an individual is employed or enrolled in a college or university, or a court
-ordered drug program, at any time while his driver's license is suspended pursuant to this section, he may apply for a special restricted driver's license permitting him to drive only to and from work, his place of education, or the court-ordered drug program, and in the course of his employment, education, or a court-ordered drug program during the period of suspension. The department may issue the special restricted driver's license only upon showing by the individual that he is employed or enrolled in a college, university, or court-ordered drug program, that he lives further than one mile from his place of employment, education, or court-ordered drug program, and that there is no adequate public transportation between his residence and his place of employment, his place of education, or court- ordered drug program.
(2) If the department issues a special restricted driver's license, it shall designate reasonable restrictions on the times during which and routes on which the individual may operate a motor vehicle. A change in the employment hours, place of employment, status as a student, status of attendance in his court-ordered drug program, or residence must be reported immediately to the department by the licensee.
(3) The fee for a special restricted driver's license is one hundred dollars, but no additional fee is due because of changes in the place and hours of employment, education, or residence. Twenty dollars of this fee must be deposited in the state general fund and eighty dollars must be placed by the Comptroller General into a special restricted account to be used by the Department of Motor Vehicles to defray the expenses of the Department of Motor Vehicles.
(4) The operation of a motor vehicle outside the time limits and route imposed by a special restricted license by the person issued that license is a violation of Section 56-1-460."