Question about blockbuster p or late fee?

yeah i have a monthly combo p at blockbuster that expires on the 14th and its about to be the 15th in like 2 hours...should i bring the game back now and if i bring it back in the morning will i be penalized or something...whether i drop it off at 12 tonight and at 9 in the morning iddk if theres a difference cause idk if theyll even check tonite...does anyone know how that works