I'm sure it does depend. So far in NC, TN, GA my logic has played true.
Betelgeuse, I invested,key word invested in a system with ESCORT called the 8500 x50. This system works in conjuction with a laser diffuser system called the ZR3. since then i have never worried about laser tickets.... If I see them great if they see me and clock me I don't worry as they don't get me as their signal is diffused. WELL WORTH THE investment. I was doing about 110 thorugh GA (which is notorious for Laser). They clocked me it went off I saw them they saw me but no one got a ticket! This has happened several times.
Escort also makes an 9500 and the sr-2 systems which have more advanced features than mine. But to get started the 8500x50 is the way to go.