Apple made a HTML coding mistake on this page. Specifically they forgot a quote on one of the tags making the HTML invalid. Using FireFox you can change the HTML and then the submit works. I submitted my app this way just now and it is "Waiting for Review"!
On the Export Compliance Tag they are missing a quote (") after the "section" in a tag. If you add that (") in the Inspector on FireFox (or using similar methods on other browsers to modify the HTML you are looking at) the Export Compliance question will show up and then you can answer it and submit your app.
OR you could just wait till tomorrow and Apple will probably fix their HTML coding mistake.