You won't get inside, but you will probably get outside.
If it's a calm day outside is not horrendous. Tip the guy well and he will tie you up and watch your boat.
Been outside a few times, one time I actually got hit because it does get rough and novices come in and then bail out when they hear it is full!
I have also seen people anchor just outside and dink in.
Don't forget, they allow overnight, so you could go Thursday night and leave the boat!