The man later recovered. The men never did find the missing gold.
The bandits were just a small negative part of Coyne’s mining experiences in Julian. After enjoying several good years in the small mountain community, he sold his share of the operation for $50,000 and moved 60 miles west to San Diego where he was elected sheriff in 1876. His election made him the first Republican to ever serve as county sheriff in the then partisan office and he served three two-year terms.
Coyne he took the role of lawman very seriously and led many hunts into the backcountry to seek out fugitives with his deputy, Ned Bushyhead who would also later serve as both Sheriff and Chief of Police. In 1885 Coyne was appointed City Marshal for San Diego. He was allotted 24 deputies and an assistant. In 1887 he was re-elected, this time under the title of Chief of Police. This despite the City Marshals office was not a municipal police agency. Coyne’s hiring was on May 14, 1889, with his certificate of election filed on May 16th, officially making him the first member of the SDPD. As chief his first official act would be to sit in on the hiring of the men who would become the new police force. Even though budgetary issues would only allow 12 men to be hired as San Diego police officers, more than 100 outsiders and all the soon to be former deputy marshals applied for the jobs. The competition was fierce.
Officially political affiliation made little difference in getting hired, however out of the 12 officers hired, 8 were Republicans and 4 were Democrats. As with the lawmen previous, these new officers had no formal training.
As the hands on manager of a small department, Coyne was able to monitor first hand the work his officers were doing. His only real trouble came when he attended a council meeting and became involved in a fistfight with a citizen who stood up and criticized the police department.
Coyne served as chief until May 27, 1891, when, on a 3-1 vote, the police commission elected William H. Crawford as his replacement. (One vote was cast for someone else) Now out of a job, Coyne was forced to hand over the department he helped create to someone else.
In 1893 Coyne took a job as a deputy under Sheriff Ben Hill and was soon thereafter appointed a night watchman in the county courthouse. The job only lasted a year before he retired and moved his family to San Francisco. After a three-year illness, Coyne died of a heart attack in San Francisco on February 5, 1916, at the age of 78.
In 1989, one hundred years after Coyne took office, his granddaughter, Laura McGowan, became a San Diego police officer