Alarm work without power??

[Chief55m]

I wanted to seek thoughts, I think I know the answer.

I have my coach parked in a storage yard, what minimal security. Last night there was an attempted break in, my toll window was smashed and the door handle on the wet bay basement door was ripped off - the perp did not gain access to my coach though.

When I turned my power on the alarm then went off, and the door handle lock seems to be jammed, it will not open now - I am waiting on locksmith to open for me tomorrow.

When I turn all the power down on my coach, all the switches in the basement and the 2 in the back of the coach -- will the alarm still work?