no
Take them to small claims court for the damages. If they didn't have permission, you should have reported it stolen and had them arrested.
No, you cannot have someone's car towed without their permission.
No, it is illegal for someone to enter your property without permission.
If they took your car without you permission, it is a vehicle theft. You would not be civily liable for an accident. Where the waters get muddied however, is if that person has driven the car with your permission in the past. He could use that as a defense in a criminal matter, because he could say that the permission to use the car "stands". It is doubtful you would incur any liabilty.
No, it is illegal for someone to cash a check in your name without your permission.
That actually depends upon what it is that you are using. If you use someone's car without permission, that is called stealing. If you use someone's movie without permission, that is called piracy. If you use someone's body without permission, that is called rape.
a truant is someone who stay away from school without permission. a truant is someone who stay away from school without permission.
No, it is generally not legal to run a credit check on someone without their permission.
Yes, it is illegal to tow someone else's car without their permission.
In Texas, it is legal to record a conversation as long as at least one party involved in the conversation consents to the recording. This means that you can record a conversation that you are a part of without the other person's permission.
The answer should be yes to both parts of the question. You should notify them.