Napa Valley car service

Are you only needing a ride to/from the wine train? Most of the car services have a 4 hour minimum if I remember correctly so you’d be better off going the Uber route. That being said, I’ve always heard that Uber was unpredictable there but I think that’s more so when you are vineyard hopping. Wouldn’t expect it to be much of an issue getting into the middle of town.