Do you always have to pay inside at Truck stops?

I've been "stuck" in the trucker lane for 30+ minutes after fueling was done... Once your at the pump, your choices are nill with trucks behind you..

Once they pull forward and go inside the store to shop, use the bathroom, eat, whatever you are there till they leave.

I do look for Flying J's and their RV islands..... usually much faster... USUALLY, not always :S