What's weird is that the fonts appear to load properly. What's even weirder is that the site randomly hangs in production when I include the TypeKit code. I've had to disable TypeKit in production because of this. Any help is appreciated.
I'm sorry that you ran into trouble with this. A 403 error usually means that the domain name of your website is not listed on your kit. I've confirmed that your kit is set up correctly, and I see that you republished it about an hour ago. Did that resolve the issue?
I replied to your support email earlier today with some debugging information; please let me know if you haven't received it and I will resend.