Hate to hear that
I have watched a lot of "security camera" videos in my day. A lot of the time, all you get is a really bad image of people stealing your really nice stuff.
I suppose you could come up with a locking bracket but the fix may cost more than a battery.
A few years back, a crew got caught stealing from docks at tawakoni and fork. They worked from a bass boat and we're always "flipping" the boat slips until they spotted something they wanted and of course, they worked at night.
Find out from the owner if anyone else was hit, file a report. I now have a camera on my boat/slip
Hooking a fish is like playing string with a cat. The exact size, shape, color of string matters less than how you wiggle it- and little cats are easier to fool than big ones. John Gierach