Dunkin' made the special deliveries to more than 25 locations in Greater Bangor in what an employee said was a statewide event.
Workers at one local floral shop said they were grateful for the extra fuel.
"I'm in shock. We were here till the wee hours of the morning doing all these Valentine arrangements and this is a godsend because Dunkin' Donuts coffee has been keeping us going all night," said Bill Sheehan, owner of Lougee & Fredrick's Florist in Bangor.
Sheehan said that during those hours last night they were working on the last 230 arrangements.