Mouse canteen on top of HVAC blower
 

Drove the car after it sat about a week. Turned on the heat and heard sand in blender sound. Upon further investigation found this:

https://cimg1.ibsrv.net/gimg/www.rx8...c9c229b78.jpeg

Bastards chewed through the filter, so the fan is full of nuts 😡 I’ll try shop vac, but this might require pulling dash apart and removing fan assembly for cleaning. Around the same time I had a wheel speed sensor go bad, so I wonder if harness got chewed.