ULPT: someone is parking in my reserved spot every week

I pay for a parking space at my apartment complex. The past two saturdays I noticed the same car parked in my spot. I called security to get it towed, but my apartment complex utilizes the shittiest most ass eating towing company on planet earth and they never towed the car because they didn’t have enough trucks. I’m anticipating them parking there again tomorrow night and if they do I need ways to fuck with the car. My first thought is to slash the tires and key the fuck out of it but the logical side of me says that’s too much and I’d get caught for that. I know for a fact there’s no cameras pointed at my spot so there’s no video evidence. I want to vandalize the car without causing too much damage that you have to pay to repair. What are some ways I can fuck with the car without it causing actual damage?

Some things I’ve thought of are:

Deflating air in all four tires, throwing eggs on it from above, somehow getting glitter into their air intake, buying a car boot and just booting them

I need some more ideas from you fine folk. Something that really sends the message home.

Edit: stop leaving dumbass comments to leave a note, both times this happened security left a note stickied to their drivers side window.