This is literally what I did. Had the loans less than a month, for both my wifes Jeep Cherokee and my Ram Laramie
If you finance with Chrysler Capital to get the extra $500/$1000. Wait til you get your account number, then you can pay it off/refinance.
there is no penalty for early pay off.
If a dealer tells you to wait three months, say "SURE", then laugh as you walk out! (and the laugh's on them as they loose their kickback)