(Las Vegas, NV)  –  The downtown Las Vegas restaurant known for  its artery-clogging fare is facing a blockage of a different sort.

The city council has refused to grant the Heart Attack Grill a permanent liquor license, until all of its investors undergo a background check.

One of the investors is Zappos’ CEO Tony Hsieh.  Hsieh has signed a waiver saying he won’t have a say in operations, but police say that’s not enough.

The city has granted an extension of a temporary liquor license, while the investors are vetted.