Bummer man, sorry. Another Tacoma owner here. I'm always expecting my windows to smashed when I walk back to the truck. Forgot about the cat thieves. What I wouldn't give to catch 'em in the act. Nothing like a little vigilante justice to warm a man's heart. "Officer, I was forced to defend myself."
I don't lock my doors anymore. They'll just break the window. If they wanna open the door and look they won't find anything of value. I put an old school club on the steering wheel in hopes they won't take the whole truck.
This was a big problem in MT for a while when I lived there. Not as much in the mountains but around town for sure. If it happened to me I'd be getting a straight pipe welded in instead. Sucks that you have to deal with this kind of crap while trying to "get away". I agree that parking over a puddle would be a good idea. Also, a stout skid plate that covered the cat area would likely be enough to keep them away.
For what it's worth - there was a report of a simultaneous break in of up to ~8 cars in the parking lot for the climbing area out at Index on 10/26. Usual modus operandi seems to be to wait for a train to pass, punch out as many windows as possible, then grab and go.
Love the area, hate the concentration of low-life thieves out there.