Here’s the Ramba”m,
? ???? ????? ????? ??? ????, ?????? ???? ??? ???? ???? ???? ?????. ????? ?????? ???? ??????, ??? ????? ????? ???? ????? ????? ?? ??????, ?????? ???? ??–??? ???? ???? ?????, ?????? ?? ??????? ?? ?? ?????. ?? ???? ???? ???? ?? ??, ??? ??????–???? ??????; ??? ????? ??????, ???.
Not an exact quote, true, it says zacha, not zoche. That’s not a paraphrase, it’s a misspelling.
That phrase is referring to a moser, and since I am maintaining that someone who calls the police to have them shut off someone’s car alarm is not a moser, it doesn’t apply here.
Please find me the Ramba”m which says that calling the cops for a car alarm is mesirah.
Boy, tough crowd.