Fred barely had time to nod - rather, it was just an incline of his chin - before he darted off and leaped through the blasts to reach the group of Muggles. It seemed the decoys had worked, thankfully, because the area where they were hiding stayed blissfully unattacked long enough for him to shout out instructions to the group, eyes blazing as he quickly looked around for a place for them to go. "Over there!" he shouted, pointing to a nearby boat house with his wand. "Get in and lock the doors! And stay covered!"
It took them a few seconds to comply, either due to shock or distrust. Fred whipped around as he saw a flash of light out of the corner of his eye - a hex, heading in the direction of the barrels George had gone to for distraction - and Fred quickly shot a stunning spell around the singed luggage cart, toward the masked figure. It was then that the group of Muggles seemed to understand that he was on their side, and they quickly huddled together to sprint to the boathouse, while Fred covered them from the side.
"Don't worry, I'm sure you'll get a refund," he quipped loudly to an especially distraught middle-aged woman as he wrenched open the door to the shack, hoping to ease her tension a little bit - something he knew was in vain. "In you go, now."