This also happened before the National Championship game. The Pouncey twins were at the party and the party was after the SEC Championship Game and before their Bowl Game.
Therefore, if Marcel accepted ANYTHING from the Agent...transportation, lodging, food, cash, etc. or actually agreed to have him represent him by either signing a document (could be something as small as a napkin) or verbally (would probably have to go to court for that)....then he would be ruled ineligible for the National Championship Game and therefore SPuat would have to forfeit or vacate their Championship.
If the NCAA uncovers that SPuat boosters/supporters/fans paid for Marcel's travel...or an Assistant Coach paid for expenses, well then, SPuat won't have a football team for a few years.