From what I've read and heard, most truck driving jobs (every thing from rollback/tow trucks to long distance OTR) are full of ex-cons or ASPD type individuals-- it may even be a pre-requisite for towing companies.

Day labor like roofing, sheetrock, landscaping, etc. also typically have similar representation. Any temp agency for factory work will have a threshold or types of conviction that they will overlook, but they may be even more hostile towards their workers.