Sometimes when driving around town I'll encounter a small clog of slow-moving traffic driving slower than the speed limit, where I simply can't pass them. There's no traffic jam, accident, road construction, funeral procession, ulterior motives, etc, they're simply a random convergence of Sunday drivers. The only thing to do is wait until one of them turns.
I'm looking for a noun to describe the frustrating situation of being stuck behind them. It should work in the sentence "Well this is going to be a(n) ____________". Please don't suggest anything profane or indecent.
So far I've come up with "long haul", but I'm not sure the connotations are right, and I'm hoping for something that reveals more frustration than that.
EDIT: I'm looking for something that indicates both slowness and frustration and not just frustration alone, my mistake for not being more clear. Even better if it's somehow driving/transportation/movement related.