BBC: “Kwik-Fit Sued Over Staff Radios“:
“A car repair firm has been taken to court accused of infringing musical copyright because its employees listen to radios at work.
The action against the Kwik-Fit Group has been brought by the Performing Rights Society which collects royalties for songwriters and performers.”
A decent starting point for looking into the US law on the interperetation of ‘in-store’ public performance of copyrightable material and the ‘home stereo’ exception: Congressional Research Service: “Copyright Law’s “Small Business Exception”: Public Performance Exemptions for Cerrtain Establishments”