Lindsay leaving Las Vegas early March 10th

The arrest warrant issued in connection with Lindsay's 2007 DUI may have more to do with her recent trip to Vegas than any "misunderstanding!"

MSNBC says that one of the conditions of Lindsay's restricted license (which was only recently reinstated), is that she can only use it for driving herself to and from work.

Well, as we first reported, Lindsay decided to surprise her girlfriend in Las Vegas, who had a gig at Prive last Monday night. Lohan left LA with her bodyguard at 9pm, arriving in Vegas to party with Samantha until the wee hours of the morning.

Well, soon after Sam's set ended, she snuck back to LA, with an incensed Lohan, (which you can see in the exclusive video above) running out after her, drink in hand, to speed off in her car and drive all the way back to LA early Tuesday morning.

Does that sound like work to you?