Not really, there is a gas station and convenience store that has basic and expensive groceries. Plan to buy food for your breakfasts and lunches in Eugene or Bend.
Up in McKenzie Bridge there aren't any Ubers, we will have van shuttles running the wedding night so everyone can get to their lodging safely.
Around the wedding venue and reception venue there is very poor cell service, so know where your lodging is and have any crucial information downloaded before heading up to the mountains. Verizon works best up in the area. Horse Creek Lodge also has wifi available, just know how to get there...