Still rolling?

Decide we’re on a roll, and we should do the Motorway Mayhems nearest home. Find M5 J1 easily enough, but cannot find J2 despite searching for a long while, far too much rubbish and broken glass around. Find J3, and go for the bonus, but there are far too many *clues* in the search area, so we give up. Try to find M6 J7 on the way home as a consolation, only to find that missing too...