The disciplinary action resulted from the forward receiving a third yellow card this season when 'sin binned' in a 40-12 home loss to Canterbury Crusaders last weekend.
After judicial officer Jannie Lubbe viewed footage of the three yellow cards, he offered the 29-year-old a one-week ban, which was accepted.
Hoeata is the second Highlanders player to be barred within two days after centre Ma'a Nonu was given a three-week ban Sunday having been red carded for a tip tackle on a Crusader.
Bottom-of-the-table Highlanders have won only twice this season in 14 outings and complete their season with visits to Wellington Hurricanes and Melbourne Rebels.