Answer
Pay-at-pump authorizations temporarily reserve funds on debit and credit cards—vacation budgets feel the pinch until the hold clears. Use credit when possible or pay inside for a fixed amount. Rental-car policies may differ on prepaid fuel options.
Sources: Visit Ocean City · Town of Ocean City
Editorial visitor guidance for Ocean City, Maryland. Confirm current Town of Ocean City, Maryland DNR, NPS Assateague, and NWS rules when regulations or safety apply.
