You definitely need to contact an attorney! An attorney can help you retrieve your items from the law enforcement agency and in case some other case comes up related to what police may have seen on your phone. Now, if the money is being kept as part of an "investigation" for a case, it may take a bit to get it back. Law enforcement is permitted to keep items that they "find" until either the investigation or case is over.
Did you consent to the search of your car/person/phone? There may definitely be some suppression issues (meaning that this very well may have been an illegal stop and search), as my colleague smartly mentioned there is some new law out there that can help with cell phone searches, and getting ahead of this will be your best defense. If you are ever stopped again, make sure you know your rights.
This information is for general purpose only and does not constitute legal advice or create an attorney- client relationship. For more information or to contact this attorney, visit http://www.thecolbertlawfirm.com or call 407-412-7234.