I missed out on putting the tulip bulbs outside and cover them with leaves, but at least I have a photo of it... 
Some of the flowers are still standing, frost bitten but standing. And the frost didn't thaw in the sunshine, so the weather is really getting colder.
I finally got tired of waiting for the floor heating to kick in, and made a report about it to my landlord. Now I'm only hoping it'll get fixed quickly.