In MI, reserves programs vary wildly from all I've looked into. Some places you may only come out at the local county fair once a year, and others will put you through "reserve" officer academies and allow you to ride secondary to a certified officer on the street. And others will just be just an excuse for the good old boys club to hang out. Call around and try to get info from various departments.
Note: In MI you will not have police powers as a reserve officer unless in the presence of and acting under the authority of an certified LEO. In MI, you cannot be "certified" with police powers unless you are actively employed by a agency.
Or just do what I did, go corrections.
Less desirable job, more opportunities. Also is a good way to gain experience that departments look for if you ever wanted to parlay that into working the road.