What to expect taking tools to auz?

First off, do I need to disinfect my tools? I've already polished and buffed most of what I own. I'm planning on taking all my hand tools over in a small one-handle tin tool box. I've read a lot of horror stories but I need my tools as I'm a mechanic by trade and these are my bread and butter for my family. Also, what am I to expect cost-wise? I can confirm weight here tomorrow once I get the rest cleaned.