There are foldable mirrors na when you unfold them, they "click" or snap into place, enough to trigger the alarm kahit warning lang (adjust the sensitivity of your alarm sensor). Most of the time the sensor will be on the driver side footwell may small spot yun for the control button/adjustment.

Also I noticed that mirrors with electric adjustment are harder to remove...not sure if this still holds true kasi baka iba yung mounting tabs behind the mirror lens to accept the electric motor inside the mirror assembly. Manual mirrors just use a ball joint on one end and the adjustment lever is in the cabin kaya more space, so simpleng sundot lang tanggal na yon.

Anyway, wala ka rin naman magagawa just move on and get a new or good used set. Ganyan na talaga buhay dyan, mahirap na. Kami nga sa simbahan pa kami nanakawan, buong row of cars nadali. Kaya hindi na kami nagsisimba dun.