Difficult one.
IF the police/traffic have a vacancy - do they need an IR or ME?
if the answer is yes - will they pay for it or you?
If you have to pay then you might as well do them now to improve your chances of getting that job.
HOWEVER.
Can you ever get those jobs with so few hours? That is the big question??????
If you dont have the hours for those jobs you have to decide what job you want?
FI will keep you current and flying and building hours but pays poor money.
Your problem is hours i suspect.
FI may be the only way forward. Once you have more hours - only then can you decide on an ME and/or IR.