Have you turned yourself in every time you exceeded the speed limit?
Illegally coming into the country is exactly like speeding, or jaywalking for that matter. Debate over everybody can come on in now.
There are two types of speed limits used in the United States: Absolute speed limits and prima facie speed limits. In states with prima facie speed limits, you can actually be caught driving faster than the posted speed limit, but if you can show that you were driving safely and presented no danger to other drivers, such as on a lonely stretch of highway, you can many times avoid being fined for that violation. I sometimes drive a little faster than the posted speed limit, but most police/highway patrol officers won't even pay you any attention unless you're going at least 5 MPH (in the city) or 10 MPH (on the highway) above the posted speed limit.