Will a security license help me get a corrections job?

My part time job is offering to put me through security training (free) and all I would have to do is go pay for the license from the state, but this isn’t the job I want forever. Should I take this as an opportunity to boost my resume? Or will it be kind of irrelevant to the recruiter? There are two prisons within commuting distance to me and neither are hiring right now so I do have time