You will be prosecuted in Iowa, as that is where the offense occurred. Your residence in Michigan or a vacation in Florida where you were apprehended does not change this fact.
This is dictated by section 2 of Article 2 of the U.S. Constitution, which requires states to return offenders to where the crime was committed for prosecution.
This section also mandates that states extend the same legal rights and protections to residents from other states as they do to their own citizens, allowing a Michigan resident the right to a fair trial in Iowa, just like any other Iowa resident.
This implies that rulers need to be judicious in how often they engage their citizens. Tyrannical leaders who exploited the populace for their own purposes were often despised and incited rebellions. Distant leaders who did not involve their people in constructive public projects weakened their kingdom against stronger realms. Confucius advocated for using the population "in the appropriate season," meaning he urged caution in mobilizing citizens to foster the kingdom's growth without provoking rebellion.