004F: create_thread @SPEEDLIMIT 

:SPEEDLIMIT
0001: wait 0 ms 
00D6: if 
0256:   player $PLAYER_CHAR defined 
004D: jump_if_false @SPEEDLIMIT_128 
00D6: if 
00DF:   actor $PLAYER_ACTOR driving 
004D: jump_if_false @SPEEDLIMIT_128 
03C0: $PLAYER_ACTOR = actor 0@ car 
02E3: 0@ = car 1@ speed 
080E: (unknown) $PLAYER_ACTOR 2@ 
00D6: if and
0039:   2@ == 72 // integer values 
0021:   1@ > 30.0 // floating-point values 
004D: jump_if_false @SPEEDLIMIT_128 
00D6: if 
0154:   actor $PLAYER_ACTOR in_zone 'SAN_AND'  // San Andreas
004D: jump_if_false @SPEEDLIMIT_128 
010E: set_player $PLAYER_CHAR minimum_wanted_level_to 2 

:SPEEDLIMIT_128
0002: jump @SPEEDLIMIT 