Thanks. The removal company is providing the bait but I may have to re-bait one of the traps since the squirrel might've eaten everything.

And that's a good idea for the lights. Might be a good temporary solution, since I just need to keep them out until my shoulder is ok enough to bury a chicken wire barrier to the crawl space. I got a recommendation to use ammonia rags to keep them away (since they don't like the smell) but the area might be too big for a stinky option to work. Plus I have to smell anything I put in the crawl space, too!