You'll find for the last few years, Latrobe street west bound in the morning and eastbound in the evening was just that: part-time bike lanes during clearway times only. Until they've recently put in the separated bike lane.
You can clearly see the bike lane marked..and the car parked in said bike lane as obviously taken outside of clearway time:http://maps.google.com.au/maps?q=latrob ... 1,,0,20.52
same with St Georges Road, Nth Fitzory, both north and southbound (still is actually):http://maps.google.com.au/maps?q=St+Geo ... 78,,0,24.8
You get used to it. I use the parttime bike lanes as an excuse occasionally to get out of work early: need to be past the clearways before 6:30pm when cars start parking in them legally.