[SgtMillhouse648]

If you had a 12 volt power supply you could place one of the plug connectors to the battery on a break away in case autonomous code goes drastically wrong... id also make sure I put a switch on it just as a failsafe. I'd also suggest placing some blocks on the cart to elevate the drive off of the ground to work on it. Our cart has a scissor lift similar to royal assault's robot this year to keep the robot down low for travel, but can be elevated to work on at a safe level.
Malhon