Words of advice? I'd have charged him.

Many road traffic acts do not consider bicycles.

253

Prohibited vehicles. Motorways MUST NOT be used by pedestrians, holders of provisional motorcycle or car licences, riders of motorcycles under 50 cc, cyclists, horse riders, certain slow-moving vehicles and those carrying oversized loads (except by special permission), agricultural vehicles, and powered wheelchairs/powered mobility scooters (see Rules 36 to 46 inclusive)
Laws HA 1980 sects 16, 17 & sch 4, MT(E&W)R regs 3(d), 4 & 11, MT(E&W)(A)R, R(S)A sects 7, 8 & sch 3, RTRA sects 17(2) & (3), & MT(S)R reg 10

Yes I was actually surprised that they did not do more. I knew that motorways had restrictions on what vehicle could use them.

This morning on my way into work there was a bloke cycling up the A1.
Now, I grant that at that particular point it IS the A1 (not the A1(M) which starts less than a mile up the road) but it's still a 70 mph dual carriageway. In my opinion cyclists should be as prohibited from that type of road as they are from motorways. It's dangerous.