I heard from one person who bought a house with their pizza bitcoins, indirectly, by trading it for cash first. Apparently it was a lot of hassle with the bank due to AML and just their general distaste for currencies they don't control. I wish I could say I did the same, but the pizza didn't appreciate the same way as the bitcoins 
I think any bank would become suspicious if you just suddenly dumped hundreds of thousands in there. I hope the Pizza tasted good. Was it just delivered from a Pizza Hut or something?
If I was you I'd sell or make my own Pizza and try sell
I'd definitely eat at Laszlo's (though he should think about lowering the price
) 
'Laszlo's' would actually make a good Pizza shop name
.