idk what your store is looking like with sales right now, but most stores dont have the payroll right now to extend, interesting that they would want to keep you....buuuut you can always leave and clock out once your time is up...of course its better for you to leave in a generous way like saying, I was supposed to be off at this time, did you want me to stay an extra 30 mins to work out those strays?
becuase of sales some stores would rather play it safe with hours than be over, so while we would all like to be scheduled rather than extended, that aint gunna happen until Q4