""A lot of police officers around here work as security guards when they're off duty to earn extra money""
Yep, hear that!. My brother was a deputy who worked sometimes as a wrecker driver, I said why, he said, for the insurance, he only had insurance to "cover him in the line of duty". He has a couple kids and a wife to consider. Fortunately, he now is Highway Patrol and gets real insurance like the rest of us. He has a family to take care of, he left his county job for better benefits.
Well, my brother-in-law does it to pay for his Harley. :-)