DH travels quite a bit for work, and just drives back and forth to the airport. Home to airport parking is a minimum 45 minute drive from our house at 4:30am, one way
He is reimbursed his parking fees as part of his business trip expenses. You may want to have your DH check if that is an approved business travel expense for him, and then he'd have his car waiting for him when he gets back.
Hope it worked out in the end!