Morgana I'm in a similar position as DGS2 is due in next few weeks. At least this time I only live 10 miles away.
When DGS1 was born we lived 3 hours drive away. I was half packed ready as we were going down to spend the week to help DD. Things didn't go according to plan, after several hours in labour she needed an emergency caesarian, quickly packed & made sandwiches, jumped in car. When we got to the Hospital I was told we couldn't go in as she already had two visitors, I wasn't sure whether to cry or shout at nurse & tell her how far we'd come. Luckily DD's OH & MiL came out. DGS weighed 9lb1oz & was 18 days early (my DD was also born 18 days early). This time if baby doesn't make an appearance in next 2 weeks she's booked for induction on 16th May, I will be jumping at each phone call.
Good luck, hope everything goes well