The conflict risk is greater when riding your ped in traffic, the person that's in a big hurry and is stuck in traffic behind a slow moving tractor-trailer will usually act quite differently when following a moped.
They can't see the truck driver to interact with, and tailgating has no effect at all, so they're stuck there, bitchin', cussing and banging on the steering wheel to no avail.
but the mopeder, well...
if you're not keeping up with traffic and you are in front of asshole like that, expect more of a risk of conflict.
all they see is a very small vehicle that's keeping them from getting to their destination a few seconds sooner.
And when traffic does stop, that's their opportunity to let you know that you are interfering with their sorry-ass life's schedule.
Cursing and hand gestures won't hurt you, but a small nudge of a car bumper can fuck you up pretty bad. You can be defiant and hold your position or let the dickhead go by.
That's a situation/ judgement call on you.
That's where the patron saint/mischeif spirit comes in.