Gas ball lock QD in downtown St. Louis?

Brought a keg to an event and forgot this key item. Anyone have one I can borrow today and return tomorrow?

Sorry, I’ll be in St Louis next week.  Good luck finding one now.

I ended up blowing CO₂ through the beverage post periodically.  Worked fine if a bit cumbersome.

The beer, a rye stout, was very well received.  At one point I had a dozen information security professionals in my room drinking homebrew.  Later, we found a discreet area of the lobby to situate the keg and finish it off.

Well done MacGyver.