Vancouver Sausage carts?
When visiting Vancouver, I have always had the most amazing sausage, whether beef, pork, turkey or even duck! The carts are all over the downtown/Robson St. area and you can't beat the sausage sandwiches. I have a terrible craving for one - anything similar in LA?
I think the sausages you are specifically referring to are what the Canadians call "Smokies". When we moved to Canada, the term "Smokie" eluded us. But now I understand it and nope, you wont find it here. Could the Smokie be - along with Poutine, Nanaimo bars, frybread and butter tarts - one of the only truly Canadian foods? Talk amongst yourselves.
Los Angeles has some of the tightest legislation in the country regarding street food vending. And the LA Times has recently reported that the police are cracking down even harder on those that do try to sell food. It's pretty unlikely you'll find what you're looking for in the same way that sausages or other food is available on the street in Vancouver (or NYC or other major cities). Often the best "street food" here is found outside ethnic markets or restaurants or from taco trucks (which are legal and inspected).
That said there are many street food vendors that skirt the formal economy (at risk of fines and equipment confiscation) - maybe not exactly what you're looking for though. How do you feel about bacon-wrapped hot dogs?? Could you consider freshly roasted corn-on-the-cob sausage? If you squint hard....
Might be easier to get recommendations for different sausages from restaurants or markets.