Watch this video posted by Singapore incidents, and you find this Skoda Kodiaq who is ferrying his prized offroad bicycle on top of his roof rack got stuck in the carpark gantry in Midview City at Sin Ming.
So here's my suggestion for the forgetful driver.
1) Use a rear bicycle mount.
Just remember to go to your nearest accessories shop to get an extra car plate to hang after you mount your bicycle.
2) Get air suspension for your ride
MCFers remember your car surrounding when you are driving to avoid an awkward situation like this!