The simple answer is that: yes, as a federal employee traveling on official business, you can be reimbursed for rideshares in accordance with your agency procedures and local laws.
People Also Ask
It is DoD policy that cardholders use their DoD travel card for all their meals that are in support of their official travel. It is actually a policy violation to use other personal forms of payment for meals while on TDY.
Government Travel Card Misuse and DelinquencyThe GTCC is not for use for personal purchases or when not on official travel. Failure to use the GTCC in an authorized manner may lead to suspension or revocation of the GTCC as well as disciplinary action, up to and including removal from Federal Service.