Perhaps if your drivers had used the easiest and best route to and from Wembley you would have been home much earlier.
It was obvious 500 + coaches plus cars and mini buses heading back to the north west would result in gridlock at the smallest mishap.
We left Wembley coach park about 8:30 – 8.45 pm, spent some time in traffic getting onto the A40 then M40, the rest was plain sailing all the way home, we had 30 mins at Frankley services on the M5 and I was opening my front door in Orrell at 1:03 am.
4.5 hours including stop and traffic Jams nr Wembley