An Obama-appointed judge in Texas surprisingly blocked the Overtime Rule set to take effect on December 1, Piper Jaffray analysts in the Hardlines Retail & Specialty Products space tell investors in a research note. The analysts say that regardless of whether the injunction is upheld, their research suggests that the ruling comes too late for larger companies to pull back on the planned Overtime Rule change. Payroll and IT systems are likely set to adjust this coming Sunday, they point out. Piper's analysts expect the expense headwinds from the OT rule change for retailers/restaurants to remain in place. The retailers they believe that are most impacted from the rule are Dollar General (DG), Dollar Tree (DLTR), Regis (RGS) and Sally Beauty (SBH). The restaurants they believe are most impacted are Bojangles (BOJA), Starbucks (SBUX), Sonic (SONC), Noodles & Company (NDLS), Potbelly (PBPB), Del Taco (TACO) and Zoe's Kitchen (ZOES).