That really isn't plenty of space to be on the inside of a truck. What if he'd have moved left while you were there?
If you can't get in front and take the lane, wait for it to go past.
@Brun started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
That really isn't plenty of space to be on the inside of a truck. What if he'd have moved left while you were there?
If you can't get in front and take the lane, wait for it to go past.