I just grabbed a random pet mat for my Model 3 on Amazon. My son actually ordered it, so I can't tell you exactly which one it is. But honestly, they all probably come from the same place in China.
Just search for "Tesla Model 3 pet mat" on Amazon and find one that's not too expensive and has...
My son had the exact same issue! It turns out a small rock had damaged one of my front sensors. Since his car is still under warranty (25k miles and under 2 years), He took it to the dealership.
To his surprise, they want to charge him a whopping $500 to replace the sensor and an extra $190 for...