Barely a minute after swimming through the sea in a storm, Gilly's hair is clearly dry as a bone and has perfect styling. Although she did use a towel for about 20 seconds this seems outrageously unlikely.
The gangster boss on the telephone tells his henchman to go to London as Gary is supposed to be there, but the road sign outside the news agent says Dartmouth and also Totnes, indicating that they are 275 miles or so away in Devon on the other side of England.