In the early chapters of Philosopher's Stone, when Harry presses Hagrid about his time at Hogwarts, Hagrid tells Harry that he was expelled and banned from doing magic (for reasons that come to light in the Chamber of Secrets). After Harry finds out that the reasons for Hagrid's expulsion were actually due to the actions of Tom Riddle, did Hagrid get anything in the way of compensation (i.e. being allowed to use magic again) to make up for his unjust expulsion and ban from magic?
EDIT: I know Hagrid was able to do simple spells (i.e. lighting the fire in the lighthouse, and causing the boat to row itself from the lighthouse) using his primitive "wand-umbrella", but he asked Harry not to mention the how he had used said magic to anyone at Hogwarts; indicating he wasn't supposed to.