Navjot Gill....u said at Penn terminals in Chester County they have parking for trucks overnight?

Not really unless you are picking up from the company that's renting space on the property security will escort you to staging area..i am a twic driver i pull an deliver containers to various locations in pa nj del ny md. They open the gate at 5am close 4:30 pm sharp

You can park there if you have a twic card and only after 6 PM