At our store we were asked (not forced) to sign aggreements that we would not roll timers by the store owners.
Leaving burgers in the production bin for 50 minutes is stupid. I will admit i have left burgers in the production bin for longer then 10 minutes, but not 50 minutes.
After 20 minutes lettace in the bigmacs and chickens start turning brown and the sauce starts going off.
If the managers are leaving the burgers in there for up to 50 minutes they should be reported.
Anyway its not as bad as HJ/BK who keep there meat patties up for an hour and a half.