if it’s not too late I used bee wii for 2 years before aa wout a parking pass. long term is $8 and kind of on the NW side of the field. the $10 express is inside the property. Separate vans run to each. the $12 is inside the parking garage which is what I used. then the $16 is near terminal North side you can walk into the terminal from a sky bridge. All off 170 or aviation blvd. the employee parking lot is off Elkridge rd. and there is a shell gas station w a light. turn right if coming from east at the light.