Perhaps no harm, I have often threatened to go out myself with a lump hammer and ladder and remove the neighbours nuisance alarm off the wall when they go away on holidays.
You would also want to make sure your house is in order before you go away, i.e no roach ends left lying around in ash trays etc
http://www.belfasttelegraph.co.uk/breaking-news/ireland/gardai-may-get-power-to-switch-off-nuisance-alarms-13954874.html