Yes. You can ask him what are you doing? As well that gives the authority for a peace officer to enter private property in order to execute service of civil papers, what happens if someone interferes with that procees and what happens if they fail to perfom that process with a certain time frame:
SECTION 23-15-40. Service of process, orders and notices; penalties for default.
The sheriff or his regular deputy, on the delivery thereof to him, shall serve, execute and return every process, rule, order or notice issued by any court of record in this State or by other competent authority. If the sheriff shall make default herein he shall be subject to rule and attachment as for a contempt and he shall also be liable to the party injured in a civil suit.
SECTION 16-9-320. Opposing or resisting law enforcement officer serving process; assaulting officer engaged in serving process.
(A) It is unlawful for a person knowingly and wilfully to oppose or resist a law enforcement officer in serving, executing, or attempting to serve or execute a legal writ or process or to resist an arrest being made by one whom the person knows or reasonably should know is a law enforcement officer, whether under process or not. A person who violates the provisions of this subsection is guilty of a misdemeanor and, upon conviction, must be fined not less than five hundred dollars nor more than one thousand dollars or imprisoned not more than one year, or both.
(B) It is unlawful for a person to knowingly and wilfully assault, beat, or wound a law enforcement officer engaged in serving, executing, or attempting to serve or execute a legal writ or process or to assault, beat, or wound an officer when the person is resisting an arrest being made by one whom the person knows or reasonably should know is a law enforcement officer, whether under process or not. A person who violates the provisions of this subsection is guilty of a felony and, upon conviction, must be fined not less than one thousand dollars nor more than ten thousand dollars or imprisoned not more than ten years, or both.
SECTION 23-17-10. Default in returning warrants or other process of magistrate.
If the sheriff shall neglect or delay to return any warrant or other process pertaining to the court of general sessions, issued by a magistrate ten days before the meeting of the court, he shall forfeit his fees and be subject to a fine of five dollars for every such default if, upon a rule to show cause, he shall fail to excuse himself to the satisfaction of the court.