I saw the tail end of the M4 last night Chris, it took me
3 hours, to get from Heathrow to Becaonsfield Services, i as was lucky to get in and a car parking space.
It was completely f*ing pathetic, light dusting and chaos, M40 was doing no faster than 5mph all the way. I got out and tried to get a hotel at the sevices, was full, apparently local ones could have filled it 10 times over.
Some twonk in transit decided to drive over a round about, guess how that ended

It was total grid lock, utter and complete nothing was moving. Mainly due i could see to the 2" slush everywere.
2 trucks got stuck at the exit to the services, which fcked everything. Comming into the services a bus came in too hot and stuffed his nose in the roundabout just behind the transit, cars then went around the wrong way, so did a truck but the turn was too tight, guess what happen when he tried to back up!
I walked to Beaconsfield itself, all the hotels full

On the up side found a pub

Walking back (its about midnight now) M40 was flowing fairly free, (40ish mph) getting out of the services was fun, but stopped off to tank up for some extra traction, and managed to get out and home, got in at 2AM, after leaving at 6pm