Do not press hard on the wood frame of your door, even if it is just so that you can get the door to stop sticking so you can deadbolt it. Your hand just might slip and might go through the glass. If you are fortunate, you'll just get minor cuts, but you'll still have to pay the maintenance guy to fix it, and you'll be scared for 2 nights that someone is going to realize that they can easily cut through the bag you placed over the window, unlock the door, and rob you. They won't, but you'll be scared that they will.
I may or may not be speaking from personal experience...