Should be Eriochilus magenteus out that way. E. cucullatus isn't very common out that way and tends to be whiter, although there is a lot of overlap in colour between the two species.
Popular plant selling well for $13.98 at Bunnings. Currently medium-high priority on ACT list of naturalised alien plants but should be increased to high priority as more data comes in. I couldn't stop to map other occurrences along roads.