The Elgin rectangle: why couldn't people lock their cars in Carlton?
theage.com.auSo much useless bla bla for "dentist's faulty wireless doorbell floods the 434 MHz spectrum, disabling car alarm fobs.".
So the old fashioned lock mechanism still worked fine.
There's car park on the top of Mt Wellington in Hobart with a similar issue, but it is attributed to the transmission tower nearby.