Depends where you live. Contact your local County Office for more info.
In the UK it certainly is.
Yes
Yes, it is illegal to put no parking stickers on cars without proper authority or permission. Doing so could be considered vandalism or tampering with someone else's property.
Anywhere in America, if you put up biohazard signs on private property that would be illegal and also trespassing.
Yes, it is usually illegal to put stickers on public signs as it can be considered vandalism or defacement of public property. Violators can face fines or other legal consequences for damaging public property without authorization.
If you mean a switch you can flip that disables the car and will not allow it to be started, the answer is no, it is not illegal. It is your car and if you want such a device installed there is no law against it.
Magnetic signs are a low cost alternative to lettering direclty on a vehicle. Because a customer can easily be put on and off. Making them rather popular for small businesses owners.
I dont exactly mean by your question but most cops have the car Crown Victoria made by Ford. But after you are in the police force for over 2 year you car have the offer to buy you own car and they will put lights on it and other stuff to it so it would be a cop car. I think i might have answer your question but if you have any other question just let me know.
unless the person owns the whole street (which i doubt that they do )the answer is NO!!
Technically no they are not illegal but that really depends on the parts put into the car during the build. But most times the answer is no kit cars are not illegal as long as you go through the processes of getting a vin number form the DMV and getting an emissions test from the police department.
Put your hands up
put nos in cars