My M3 was in to address the 65+ mph shimmy. They reported that both the front and rear alignment was way out of spec, and the right rear wheel was out of balance.
Net: Car is much smoother on the freeway now. There is still a very slight hint of shake near 65, but it's fleeting & I can live w/it.
Re: the cold-running hesitation: They were surprised when I quoted the TSB number. They confirmed that this applies to my car, we just didn't have time to handle it today. I'll definitely get it done next service.
'98 A4 30v