This script allows you to change the $ONMISSION flag status. The status when you are on a mission or exploring San Andreas. I know that there is a program "GTA-On-Mission-Changer by Earleys", but its downside is that it does not work on game version...
Dynamic Speed Limiter for GTA San Andreas This mod adds a realistic speed limit system based on location. You can drive freely in rural areas or deserts, but once you enter cities, the government imposes speed limits. Exceeding the speed limit w...