Welcome back to the map Iain... I've been mostly messing with postboxes lately.

Again back here in Pommieland (where it's still about 1973 in Public Transport terms) they make the bus driver hit a tit as he passes each stop (often with people stood waiting for the bus but ding! ding! and doesn't bother to stop of course) - so your ticket has the name of the stop on it if you're lucky enough to be allowed on the bus by the driver.

Plan C for the evidence would be to film it - you'd get the time and proof that you're on the number 82 bus in one hit.

If the "supersmart" ticketing system is anything like the Tyne Tunnel, all it does is actually make sure you paid your due to get through the tunnel - they have to have other systems to make sure you're not speeding in the tunnel...

If the tunnel is known length - use a stopwatch to time through the tunnel - that ought to give you an average speed assuming it's a straight line (I don't know if it is) - if that speed is close to the limit (or above it) then moan - if they ask for evidence, someone here will reverse engineer a GPX trail for sure, it's easy enough to do ;-)

Careful following the GPS too closely on the paths - whoever did it before me had a strange behaviour on 3 paths that I've filled in...