If Imhotep was Buried alive, why Is Imhotep trying to get the Canopic jars Back?
He was not Mummified in the same manner as the other Mummies? They Cut off his tongue bond him and placed him in the Sarcophagus. Then the Priest dumped the beetles in and closed the lid. There for he would not need the canopic jars.

There were four jars. Each jar held one internal organ. The liver, the lungs, the stomach, and intestines were taken out of the body and washed in a kind of white wine. The four organs were then put into jars. One of the sons of Horus was on each of the lids. The sons were Duamutif, a jackal or dog who protected the stomach, Hapy a baboon, who protected the lungs, Quebehsenuf, a falcon who protected the intestines, and Imsety, a human who protected the liver. Each mummy had all of the different kinds of canopic jars in its tomb.