There are various lots at the Buffalo airport for long term parking. The closest one to the terminal is the Long Term preferred lot ("A" I believe). It is also the most expensive (which is totally relative because the rate at YYZ is more). We always park at A as you can even walk from the terminal to your car if you really wanted to. When we went in August, the lot was pretty full already on a Monday morning, so we had to go to the edge of the lot. A shuttle bus spotted us driving around to find parking and stopped right by the car! We just had to take stuff out of the trunk of the car and put it right on the bus. On the way home, it was early evening, and we didn't want to wait for the shuttle at the terminal and walked back to our car. It's not covered, but it is safe. Park your car so that the hood is facing out so that if you do have issues with your car, you can have easy access to the engine! There's people and lot attendants around to help. To pay is easy, there are different lanes you drive into depending on method of payment. If you plan to use the coupon, get into the COUPON designated lane to pay.