Commercial building will probably state alarm with a level 1 response.
Worse case - break in, badminton rackets ain't worth pinching, there's no petty cash as it all credit cards in 2022, kids doing the robbing have the bright idea to play with matches...
Insurer won't pay the 45k of damages as you've not complied with the small print of the policy,
In 30 odd year of doing F&S I've seen lots of penny pinching which has back fired, I post a lovely example of recent incident in trade ?
Doing it once properly is cheaper than doing it twice.
The alarm is a few % of the build cost,