Sounds like a gusher. Bummer. good call keeping it cold from here on out. My first go at belgian Quad turned out a gusher. I keep the bottles in my basement where it's cool, when I want one I put it in the fridge to get as much CO2 into the beer as possible, then crack the cap in the sink. It leaks for a while, then I crack again, and repeat like 10 times over the course of 10-30 minutes. PITA but it works without loosing all the beer.
I love to throw belgian saison yeast at all my worts. I just did a bit with about a gallon of porter, as well as a hoppy brown ale. Here's to hoping they turn out great!