Possibly you can't read it, it is at a funny angle and was taken from my car.
The sign reads as follows.
PLEASE KEEP YOUR WINDOWS CLOSED UNTIL YOUR ORDER IS COMPLETE TO ELIMINATE SNOW FROM FALLING INTO YOUR CAR.
This made me laugh a bit so I questioned it cause (for once) I got an adult at the window as opposed to the irresponsible snotty teenagers that usually work there. No guarantee he is a "responsible" adult but an adult none the less. So (as I said) I questioned it and his response was that customers were actually blaming the DQ workers for the fact that they were getting snow in their car while waiting for their food. Because I don't know IT'S SNOWING OUTSIDE!!!! The sheer stupidity of people shocks me. You're getting snowed on in your car cause your window is open, there is nothing that the employees at DQ can do for you unless you expect them to hold a canopy over your car while you wait. I should not have said that people are going to think that would be proper. And by the way it wouldn't be.