My aunt is a UNO grad my Uncle is a UND and UNO grad, and his first taste of Sioux hockey was the game against DU we scored 4 in the 3rd to win. (Just so happened it was the day after grandma's funeral so it made a terrible week a little better)
Good article on the cost of playing youth hockey in grand forks
http://www.grandforksherald.com/news/local/3982494-parents-spend-thousands-make-sacrifices-youth-hockey
Holiday Inn across the street is good, they charge 15 a day for parking but so does the x so that's a wash. There is a best western up the hill by the Capitol that is reasonable. Or there is the St. Paul or the river center.