Trace any credit/debit card purchases which may have been done, and have the bank disclose any withdrawals from their bank accounts... it sounds elementary, but please ask the police to do that. Also, run a credit check on their names/socials to see if any new accounts have been opened in their names in the last few days...
A financial trace is one of the fastest ways to find someone, and yet, many smaller law enforcement agencies don’t think to run them right away. Do so immediately, and supoena the records if you have to - don’t let any agency tell you they “can’t do it”.
Cut off in mid-post -
Even if no purchases have been made via credit card or atm, a full credit check should be run on both ladies to rule out the use of their identities by others. Criminals will frequently use the old cards to gain credit to open new “store accounts” to make purchases, rather than use the old credit cards themselves...