This may not be much help due to 1) distance from you, and 2) us having an NA 111 vs supercharged/Accusump'd, but for what it's worth...
We lived in the North Bay when we had to smog our Elise for the first time. Initially, we had a horrific and aborted experience with White Glove Smog Check in Rohnert Park. I'll never forget it. I had stopped by without the car about a week in advance to feel it out, and thought we were OK. During the test, however, the tech nearly banged the driver's door into the wall after driving it into the stall, needed told that the engine was not in the front of the car, then leaned all over the rear clam looking for whatever he was looking for in the engine bay, and finally braced his arm against the open engine hatch, which I saw BEND under his weight. I asked him to stop, step away from the car while I backed it out of the stall, and we drove away seething because the tech got all defensive about it.
After that, a friend referred us to a mom-and-pop type repair shop/smog station in the form of Dave's Auto Repair located at 1911 Bodega Avenue, Petaluma (707-763-8365). They were quick, friendly, and careful with our car. Not sure an Accusump would or would not throw them for a loop, but being a small, family business, I would think you'd be likely to get a more-than-fair shake.
Again, I realize that's a long way from the South Bay, and talking about the reasons for previously "failed" smog tests (i.e. the Accusump) isn't the way I would want to start my appointment-making phone call, either. Still, your plight made me think of our experience several years ago, and I thought I'd throw it out there. Might it be easier to disconnect the Accusump for the test and reconnect it afterwards? Yeah, might be. California never made anything easy. We miss the mountains, weather, and racetracks, but we'll never move back. Good luck with all--
Next time...
