You certainly do have issues.

Anyway the police were called because someone deemed he looked suspicious, silly I know but thats where we are, so, he was located and after being searched he was found to be in possession of a pair of pliers, now that could be construde as 'going equipped' especially when your stood next to a wire fence, see where this is heading? A change of clothes, on its own then it could be perfectly normal but together with 'going equipped' it starts to look suss, this is why its different to your average joe walking along a pavement looking into someones front garden, the two aren't even similar. However after a brief explanation and investigation it was deemed that no law had been broken(maybe it would of been had the police not turned up, we'll never know) he was allowed to leave, he wasn't arrested as you alluded to either as no law was broken.

However, now this is the important bit - he may have broken FA/EFL rules (not laws) but rules, they will investigate and the punishment is a 20 point deduction