When do I ask him to stop with the beers so he can drive to hospital?

My man likes his beer. He drinks it every night. He doesn’t get crazy drunk, but last night, had 5 beers...which is too much to drive. I was just thinking, if I go into labor we are screwed because he won’t be able to drive.

Curious how and if any other mamas have had to deal with this? I don’t want to come across as controlling but at the same time, I feel I need to because taking me to the hospital is his responsibility. I’m 33 weeks tomorrow, should I wait to say anything or what? I’m nervous to bring it up because I don’t want to ruffle any feathers.