I'm a truck driver and I don't think he'd of known if he flicked it up from the road and I deffinately don't believe he'd of done it on purpose (unless he was irish and having a bad day lol).
Irish are mad
bast@rds to other truck drivers as well so don't think it's just car drivers, don't pi*s them off, infact I wouldn't go out your way to pi*s any truck driver off because they have a job to do and get somewhere at a certain time and most don't take kindly to people holding them up (if a truck can go that quick at that time a car deffinately can) and they're fully aware that they're bigger than you so if for instance your in some road works on a motorway that's a 40 limit with speed cameras do 40 and not 30 as speed cameras give you 10% safety thing anyway (44) but I'd still keep to 40 just incase you have a slight lack of consentration down a hill or something (obviously nothing to do with this thread just some advice).
Even if you had of got the company name and reg it wouldn't of made a difference because even if you could prove it was him with 35 witnesses you still wouldn't get oat out of the company or their insurance for it.
P.S. I wouldn't say I was an idiot, I've got qualifications in computers and stuff I just do the job because I enjoy it, no boss over your shoulder all the time and stuff.